Home / 817,082.40-1,224,165.60-395,428.80

Finding the Fourth Proportional to 817,082.40, 1,224,165.60 and 395,428.80

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Solution

The fourth proportional to 817,082.40, 1,224,165.60 and 395,428.80 is: 592,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,082.40 : 1,224,165.60 = 395,428.80 : x
  2. Step 2: Convert to fraction form
    817,082.40/1,224,165.60 = 395,428.80/x
  3. Step 3: Cross multiply
    817,082.40x = 1,224,165.60 × 395,428.80
  4. Step 4: Simplify right side
    817,082.40x = 484,070,334,209.28
  5. Step 5: Solve for x
    x = 484,070,334,209.28/817,082.40
  6. Step 6: Final answer
    x = 592,437.60

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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.