Home / 821,350.40-1,232,486.40-347,955.20

Finding the Fourth Proportional to 821,350.40, 1,232,486.40 and 347,955.20

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Solution

The fourth proportional to 821,350.40, 1,232,486.40 and 347,955.20 is: 522,128.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,350.40 : 1,232,486.40 = 347,955.20 : x
  2. Step 2: Convert to fraction form
    821,350.40/1,232,486.40 = 347,955.20/x
  3. Step 3: Cross multiply
    821,350.40x = 1,232,486.40 × 347,955.20
  4. Step 4: Simplify right side
    821,350.40x = 428,850,051,809.28
  5. Step 5: Solve for x
    x = 428,850,051,809.28/821,350.40
  6. Step 6: Final answer
    x = 522,128.01

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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.