Home / 488,781.30-733,828.05-312,071.70

Finding the Fourth Proportional to 488,781.30, 733,828.05 and 312,071.70

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Solution

The fourth proportional to 488,781.30, 733,828.05 and 312,071.70 is: 468,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,781.30 : 733,828.05 = 312,071.70 : x
  2. Step 2: Convert to fraction form
    488,781.30/733,828.05 = 312,071.70/x
  3. Step 3: Cross multiply
    488,781.30x = 733,828.05 × 312,071.70
  4. Step 4: Simplify right side
    488,781.30x = 229,006,967,071.19
  5. Step 5: Solve for x
    x = 229,006,967,071.19/488,781.30
  6. Step 6: Final answer
    x = 468,526.45

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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.