Home / 1,003,385.40-1,504,437.63-661,434.18

Finding the Fourth Proportional to 1,003,385.40, 1,504,437.63 and 661,434.18

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Solution

The fourth proportional to 1,003,385.40, 1,504,437.63 and 661,434.18 is: 991,729.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,385.40 : 1,504,437.63 = 661,434.18 : x
  2. Step 2: Convert to fraction form
    1,003,385.40/1,504,437.63 = 661,434.18/x
  3. Step 3: Cross multiply
    1,003,385.40x = 1,504,437.63 × 661,434.18
  4. Step 4: Simplify right side
    1,003,385.40x = 995,086,470,160.19
  5. Step 5: Solve for x
    x = 995,086,470,160.19/1,003,385.40
  6. Step 6: Final answer
    x = 991,729.07

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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.