Home / 389,008.40-536,311.68-291,799.04

Finding the Fourth Proportional to 389,008.40, 536,311.68 and 291,799.04

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Solution

The fourth proportional to 389,008.40, 536,311.68 and 291,799.04 is: 402,292.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,008.40 : 536,311.68 = 291,799.04 : x
  2. Step 2: Convert to fraction form
    389,008.40/536,311.68 = 291,799.04/x
  3. Step 3: Cross multiply
    389,008.40x = 536,311.68 × 291,799.04
  4. Step 4: Simplify right side
    389,008.40x = 156,495,233,364.79
  5. Step 5: Solve for x
    x = 156,495,233,364.79/389,008.40
  6. Step 6: Final answer
    x = 402,292.68

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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.