Home / 561,487.04-774,931.12-357,472.78

Finding the Fourth Proportional to 561,487.04, 774,931.12 and 357,472.78

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Solution

The fourth proportional to 561,487.04, 774,931.12 and 357,472.78 is: 493,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,487.04 : 774,931.12 = 357,472.78 : x
  2. Step 2: Convert to fraction form
    561,487.04/774,931.12 = 357,472.78/x
  3. Step 3: Cross multiply
    561,487.04x = 774,931.12 × 357,472.78
  4. Step 4: Simplify right side
    561,487.04x = 277,016,781,774.91
  5. Step 5: Solve for x
    x = 277,016,781,774.91/561,487.04
  6. Step 6: Final answer
    x = 493,362.74

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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.