Home / 821,718.30-1,232,577.45-484,920.30

Finding the Fourth Proportional to 821,718.30, 1,232,577.45 and 484,920.30

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Solution

The fourth proportional to 821,718.30, 1,232,577.45 and 484,920.30 is: 727,380.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,718.30 : 1,232,577.45 = 484,920.30 : x
  2. Step 2: Convert to fraction form
    821,718.30/1,232,577.45 = 484,920.30/x
  3. Step 3: Cross multiply
    821,718.30x = 1,232,577.45 × 484,920.30
  4. Step 4: Simplify right side
    821,718.30x = 597,701,826,827.24
  5. Step 5: Solve for x
    x = 597,701,826,827.24/821,718.30
  6. Step 6: Final answer
    x = 727,380.45

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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.