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Finding the Fourth Proportional to 555,411.34, 765,894.31 and 475,104.70

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Solution

The fourth proportional to 555,411.34, 765,894.31 and 475,104.70 is: 655,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,411.34 : 765,894.31 = 475,104.70 : x
  2. Step 2: Convert to fraction form
    555,411.34/765,894.31 = 475,104.70/x
  3. Step 3: Cross multiply
    555,411.34x = 765,894.31 × 475,104.70
  4. Step 4: Simplify right side
    555,411.34x = 363,879,986,384.26
  5. Step 5: Solve for x
    x = 363,879,986,384.26/555,411.34
  6. Step 6: Final answer
    x = 655,154.05

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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.