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Finding the Fourth Proportional to 602,088.60, 830,920.68 and 397,781.13

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Solution

The fourth proportional to 602,088.60, 830,920.68 and 397,781.13 is: 548,963.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,088.60 : 830,920.68 = 397,781.13 : x
  2. Step 2: Convert to fraction form
    602,088.60/830,920.68 = 397,781.13/x
  3. Step 3: Cross multiply
    602,088.60x = 830,920.68 × 397,781.13
  4. Step 4: Simplify right side
    602,088.60x = 330,524,567,030.77
  5. Step 5: Solve for x
    x = 330,524,567,030.77/602,088.60
  6. Step 6: Final answer
    x = 548,963.34

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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.