Home / 411,948.20-616,712.70-307,231.40

Finding the Fourth Proportional to 411,948.20, 616,712.70 and 307,231.40

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Solution

The fourth proportional to 411,948.20, 616,712.70 and 307,231.40 is: 459,944.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,948.20 : 616,712.70 = 307,231.40 : x
  2. Step 2: Convert to fraction form
    411,948.20/616,712.70 = 307,231.40/x
  3. Step 3: Cross multiply
    411,948.20x = 616,712.70 × 307,231.40
  4. Step 4: Simplify right side
    411,948.20x = 189,473,506,218.78
  5. Step 5: Solve for x
    x = 189,473,506,218.78/411,948.20
  6. Step 6: Final answer
    x = 459,944.98

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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.