Home / 820,384.92-1,132,133.76-457,824.12

Finding the Fourth Proportional to 820,384.92, 1,132,133.76 and 457,824.12

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Solution

The fourth proportional to 820,384.92, 1,132,133.76 and 457,824.12 is: 631,798.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,384.92 : 1,132,133.76 = 457,824.12 : x
  2. Step 2: Convert to fraction form
    820,384.92/1,132,133.76 = 457,824.12/x
  3. Step 3: Cross multiply
    820,384.92x = 1,132,133.76 × 457,824.12
  4. Step 4: Simplify right side
    820,384.92x = 518,318,142,394.29
  5. Step 5: Solve for x
    x = 518,318,142,394.29/820,384.92
  6. Step 6: Final answer
    x = 631,798.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.