Home / 771,208.30-1,156,294.05-411,438.70

Finding the Fourth Proportional to 771,208.30, 1,156,294.05 and 411,438.70

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Solution

The fourth proportional to 771,208.30, 1,156,294.05 and 411,438.70 is: 616,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,208.30 : 1,156,294.05 = 411,438.70 : x
  2. Step 2: Convert to fraction form
    771,208.30/1,156,294.05 = 411,438.70/x
  3. Step 3: Cross multiply
    771,208.30x = 1,156,294.05 × 411,438.70
  4. Step 4: Simplify right side
    771,208.30x = 475,744,120,749.74
  5. Step 5: Solve for x
    x = 475,744,120,749.74/771,208.30
  6. Step 6: Final answer
    x = 616,881.48

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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.