Home / 497,811.30-686,938.77-282,902.10

Finding the Fourth Proportional to 497,811.30, 686,938.77 and 282,902.10

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Solution

The fourth proportional to 497,811.30, 686,938.77 and 282,902.10 is: 390,381.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,811.30 : 686,938.77 = 282,902.10 : x
  2. Step 2: Convert to fraction form
    497,811.30/686,938.77 = 282,902.10/x
  3. Step 3: Cross multiply
    497,811.30x = 686,938.77 × 282,902.10
  4. Step 4: Simplify right side
    497,811.30x = 194,336,420,604.42
  5. Step 5: Solve for x
    x = 194,336,420,604.42/497,811.30
  6. Step 6: Final answer
    x = 390,381.70

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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.