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Finding the Fourth Proportional to 977,454.40, 1,465,490.40 and 445,230.40

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Solution

The fourth proportional to 977,454.40, 1,465,490.40 and 445,230.40 is: 667,530.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,454.40 : 1,465,490.40 = 445,230.40 : x
  2. Step 2: Convert to fraction form
    977,454.40/1,465,490.40 = 445,230.40/x
  3. Step 3: Cross multiply
    977,454.40x = 1,465,490.40 × 445,230.40
  4. Step 4: Simplify right side
    977,454.40x = 652,480,876,988.16
  5. Step 5: Solve for x
    x = 652,480,876,988.16/977,454.40
  6. Step 6: Final answer
    x = 667,530.76

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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.