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Finding the Fourth Proportional to 696,006.94, 960,569.25 and 390,165.92

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Solution

The fourth proportional to 696,006.94, 960,569.25 and 390,165.92 is: 538,473.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,006.94 : 960,569.25 = 390,165.92 : x
  2. Step 2: Convert to fraction form
    696,006.94/960,569.25 = 390,165.92/x
  3. Step 3: Cross multiply
    696,006.94x = 960,569.25 × 390,165.92
  4. Step 4: Simplify right side
    696,006.94x = 374,781,385,149.96
  5. Step 5: Solve for x
    x = 374,781,385,149.96/696,006.94
  6. Step 6: Final answer
    x = 538,473.64

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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.