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Finding the Fourth Proportional to 655,248.30, 904,521.64 and 440,512.92

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Solution

The fourth proportional to 655,248.30, 904,521.64 and 440,512.92 is: 608,095.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,248.30 : 904,521.64 = 440,512.92 : x
  2. Step 2: Convert to fraction form
    655,248.30/904,521.64 = 440,512.92/x
  3. Step 3: Cross multiply
    655,248.30x = 904,521.64 × 440,512.92
  4. Step 4: Simplify right side
    655,248.30x = 398,453,467,679.57
  5. Step 5: Solve for x
    x = 398,453,467,679.57/655,248.30
  6. Step 6: Final answer
    x = 608,095.39

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1.5x scale

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.