Home / 728,358.24-1,005,769.04-456,892.76

Finding the Fourth Proportional to 728,358.24, 1,005,769.04 and 456,892.76

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Solution

The fourth proportional to 728,358.24, 1,005,769.04 and 456,892.76 is: 630,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,358.24 : 1,005,769.04 = 456,892.76 : x
  2. Step 2: Convert to fraction form
    728,358.24/1,005,769.04 = 456,892.76/x
  3. Step 3: Cross multiply
    728,358.24x = 1,005,769.04 × 456,892.76
  4. Step 4: Simplify right side
    728,358.24x = 459,528,592,838.11
  5. Step 5: Solve for x
    x = 459,528,592,838.11/728,358.24
  6. Step 6: Final answer
    x = 630,910.13

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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.