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Finding the Fourth Proportional to 402,565.60, 603,848.01 and 103,045.69

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Solution

The fourth proportional to 402,565.60, 603,848.01 and 103,045.69 is: 154,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,565.60 : 603,848.01 = 103,045.69 : x
  2. Step 2: Convert to fraction form
    402,565.60/603,848.01 = 103,045.69/x
  3. Step 3: Cross multiply
    402,565.60x = 603,848.01 × 103,045.69
  4. Step 4: Simplify right side
    402,565.60x = 62,223,934,845.58
  5. Step 5: Solve for x
    x = 62,223,934,845.58/402,565.60
  6. Step 6: Final answer
    x = 154,568.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.