Home / 812,778.66-1,121,209.29-502,582.07

Finding the Fourth Proportional to 812,778.66, 1,121,209.29 and 502,582.07

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Solution

The fourth proportional to 812,778.66, 1,121,209.29 and 502,582.07 is: 693,300.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,778.66 : 1,121,209.29 = 502,582.07 : x
  2. Step 2: Convert to fraction form
    812,778.66/1,121,209.29 = 502,582.07/x
  3. Step 3: Cross multiply
    812,778.66x = 1,121,209.29 × 502,582.07
  4. Step 4: Simplify right side
    812,778.66x = 563,499,680,265.38
  5. Step 5: Solve for x
    x = 563,499,680,265.38/812,778.66
  6. Step 6: Final answer
    x = 693,300.29

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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.