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Finding the Fourth Proportional to 721,971.16, 996,007.30 and 435,332

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Solution

The fourth proportional to 721,971.16, 996,007.30 and 435,332 is: 600,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,971.16 : 996,007.30 = 435,332 : x
  2. Step 2: Convert to fraction form
    721,971.16/996,007.30 = 435,332/x
  3. Step 3: Cross multiply
    721,971.16x = 996,007.30 × 435,332
  4. Step 4: Simplify right side
    721,971.16x = 433,593,849,923.60
  5. Step 5: Solve for x
    x = 433,593,849,923.60/721,971.16
  6. Step 6: Final answer
    x = 600,569.49

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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.