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Finding the Fourth Proportional to 610,521.89, 842,570.65 and 338,677.43

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Solution

The fourth proportional to 610,521.89, 842,570.65 and 338,677.43 is: 467,402.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,521.89 : 842,570.65 = 338,677.43 : x
  2. Step 2: Convert to fraction form
    610,521.89/842,570.65 = 338,677.43/x
  3. Step 3: Cross multiply
    610,521.89x = 842,570.65 × 338,677.43
  4. Step 4: Simplify right side
    610,521.89x = 285,359,662,335.43
  5. Step 5: Solve for x
    x = 285,359,662,335.43/610,521.89
  6. Step 6: Final answer
    x = 467,402.84

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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.