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Finding the Fourth Proportional to 488,314.90, 732,904.35 and 288,385.30

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Solution

The fourth proportional to 488,314.90, 732,904.35 and 288,385.30 is: 432,833.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,314.90 : 732,904.35 = 288,385.30 : x
  2. Step 2: Convert to fraction form
    488,314.90/732,904.35 = 288,385.30/x
  3. Step 3: Cross multiply
    488,314.90x = 732,904.35 × 288,385.30
  4. Step 4: Simplify right side
    488,314.90x = 211,358,840,846.06
  5. Step 5: Solve for x
    x = 211,358,840,846.06/488,314.90
  6. Step 6: Final answer
    x = 432,833.08

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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.