Home / 1,207,972.10-1,812,176.85-607,421.90

Finding the Fourth Proportional to 1,207,972.10, 1,812,176.85 and 607,421.90

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Solution

The fourth proportional to 1,207,972.10, 1,812,176.85 and 607,421.90 is: 911,242.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,972.10 : 1,812,176.85 = 607,421.90 : x
  2. Step 2: Convert to fraction form
    1,207,972.10/1,812,176.85 = 607,421.90/x
  3. Step 3: Cross multiply
    1,207,972.10x = 1,812,176.85 × 607,421.90
  4. Step 4: Simplify right side
    1,207,972.10x = 1,100,755,905,363.02
  5. Step 5: Solve for x
    x = 1,100,755,905,363.02/1,207,972.10
  6. Step 6: Final answer
    x = 911,242.82

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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.