Home / 977,366.40-1,465,358.40-445,142.40

Finding the Fourth Proportional to 977,366.40, 1,465,358.40 and 445,142.40

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Solution

The fourth proportional to 977,366.40, 1,465,358.40 and 445,142.40 is: 667,398.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,366.40 : 1,465,358.40 = 445,142.40 : x
  2. Step 2: Convert to fraction form
    977,366.40/1,465,358.40 = 445,142.40/x
  3. Step 3: Cross multiply
    977,366.40x = 1,465,358.40 × 445,142.40
  4. Step 4: Simplify right side
    977,366.40x = 652,293,155,036.16
  5. Step 5: Solve for x
    x = 652,293,155,036.16/977,366.40
  6. Step 6: Final answer
    x = 667,398.79

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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.