Home / 821,627.40-1,232,441.10-555,688.20

Finding the Fourth Proportional to 821,627.40, 1,232,441.10 and 555,688.20

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Solution

The fourth proportional to 821,627.40, 1,232,441.10 and 555,688.20 is: 833,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,627.40 : 1,232,441.10 = 555,688.20 : x
  2. Step 2: Convert to fraction form
    821,627.40/1,232,441.10 = 555,688.20/x
  3. Step 3: Cross multiply
    821,627.40x = 1,232,441.10 × 555,688.20
  4. Step 4: Simplify right side
    821,627.40x = 684,852,976,465.02
  5. Step 5: Solve for x
    x = 684,852,976,465.02/821,627.40
  6. Step 6: Final answer
    x = 833,532.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.