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Finding the Fourth Proportional to 977,502.70, 1,466,448.45 and 820,816.30

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Solution

The fourth proportional to 977,502.70, 1,466,448.45 and 820,816.30 is: 1,231,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,502.70 : 1,466,448.45 = 820,816.30 : x
  2. Step 2: Convert to fraction form
    977,502.70/1,466,448.45 = 820,816.30/x
  3. Step 3: Cross multiply
    977,502.70x = 1,466,448.45 × 820,816.30
  4. Step 4: Simplify right side
    977,502.70x = 1,203,684,790,869.74
  5. Step 5: Solve for x
    x = 1,203,684,790,869.74/977,502.70
  6. Step 6: Final answer
    x = 1,231,387.69

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1.5x scale

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.