Home / 977,447.40-1,465,479.90-445,223.40

Finding the Fourth Proportional to 977,447.40, 1,465,479.90 and 445,223.40

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Solution

The fourth proportional to 977,447.40, 1,465,479.90 and 445,223.40 is: 667,520.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,447.40 : 1,465,479.90 = 445,223.40 : x
  2. Step 2: Convert to fraction form
    977,447.40/1,465,479.90 = 445,223.40/x
  3. Step 3: Cross multiply
    977,447.40x = 1,465,479.90 × 445,223.40
  4. Step 4: Simplify right side
    977,447.40x = 652,465,943,709.66
  5. Step 5: Solve for x
    x = 652,465,943,709.66/977,447.40
  6. Step 6: Final answer
    x = 667,520.26

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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.