Home / 861,715.40-1,292,054.70-441,811.40

Finding the Fourth Proportional to 861,715.40, 1,292,054.70 and 441,811.40

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Solution

The fourth proportional to 861,715.40, 1,292,054.70 and 441,811.40 is: 662,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,715.40 : 1,292,054.70 = 441,811.40 : x
  2. Step 2: Convert to fraction form
    861,715.40/1,292,054.70 = 441,811.40/x
  3. Step 3: Cross multiply
    861,715.40x = 1,292,054.70 × 441,811.40
  4. Step 4: Simplify right side
    861,715.40x = 570,844,495,883.58
  5. Step 5: Solve for x
    x = 570,844,495,883.58/861,715.40
  6. Step 6: Final answer
    x = 662,451.31

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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.