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Finding the Fourth Proportional to 637,649.40, 955,424.24 and 445,543.32

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Solution

The fourth proportional to 637,649.40, 955,424.24 and 445,543.32 is: 667,581.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,649.40 : 955,424.24 = 445,543.32 : x
  2. Step 2: Convert to fraction form
    637,649.40/955,424.24 = 445,543.32/x
  3. Step 3: Cross multiply
    637,649.40x = 955,424.24 × 445,543.32
  4. Step 4: Simplify right side
    637,649.40x = 425,682,887,898.08
  5. Step 5: Solve for x
    x = 425,682,887,898.08/637,649.40
  6. Step 6: Final answer
    x = 667,581.41

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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.