Home / 977,711.20-1,466,493.90-408,945.40

Finding the Fourth Proportional to 977,711.20, 1,466,493.90 and 408,945.40

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Solution

The fourth proportional to 977,711.20, 1,466,493.90 and 408,945.40 is: 613,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,711.20 : 1,466,493.90 = 408,945.40 : x
  2. Step 2: Convert to fraction form
    977,711.20/1,466,493.90 = 408,945.40/x
  3. Step 3: Cross multiply
    977,711.20x = 1,466,493.90 × 408,945.40
  4. Step 4: Simplify right side
    977,711.20x = 599,715,934,533.06
  5. Step 5: Solve for x
    x = 599,715,934,533.06/977,711.20
  6. Step 6: Final answer
    x = 613,387.61

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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.