Home / 672,332.40-1,008,498.60-621,010.80

Finding the Fourth Proportional to 672,332.40, 1,008,498.60 and 621,010.80

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Solution

The fourth proportional to 672,332.40, 1,008,498.60 and 621,010.80 is: 931,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,332.40 : 1,008,498.60 = 621,010.80 : x
  2. Step 2: Convert to fraction form
    672,332.40/1,008,498.60 = 621,010.80/x
  3. Step 3: Cross multiply
    672,332.40x = 1,008,498.60 × 621,010.80
  4. Step 4: Simplify right side
    672,332.40x = 626,288,522,384.88
  5. Step 5: Solve for x
    x = 626,288,522,384.88/672,332.40
  6. Step 6: Final answer
    x = 931,516.20

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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.