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Finding the Fourth Proportional to 891,909.90, 1,337,362.92 and 292,820.58

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Solution

The fourth proportional to 891,909.90, 1,337,362.92 and 292,820.58 is: 439,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,909.90 : 1,337,362.92 = 292,820.58 : x
  2. Step 2: Convert to fraction form
    891,909.90/1,337,362.92 = 292,820.58/x
  3. Step 3: Cross multiply
    891,909.90x = 1,337,362.92 × 292,820.58
  4. Step 4: Simplify right side
    891,909.90x = 391,607,385,904.89
  5. Step 5: Solve for x
    x = 391,607,385,904.89/891,909.90
  6. Step 6: Final answer
    x = 439,066.08

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1.5x scale

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.