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Finding the Fourth Proportional to 478,295.33, 717,484.30 and 123,306.35

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Solution

The fourth proportional to 478,295.33, 717,484.30 and 123,306.35 is: 184,970.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,295.33 : 717,484.30 = 123,306.35 : x
  2. Step 2: Convert to fraction form
    478,295.33/717,484.30 = 123,306.35/x
  3. Step 3: Cross multiply
    478,295.33x = 717,484.30 × 123,306.35
  4. Step 4: Simplify right side
    478,295.33x = 88,470,370,215.31
  5. Step 5: Solve for x
    x = 88,470,370,215.31/478,295.33
  6. Step 6: Final answer
    x = 184,970.17

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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.