Home / 861,207.40-1,291,292.70-441,303.40

Finding the Fourth Proportional to 861,207.40, 1,291,292.70 and 441,303.40

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Solution

The fourth proportional to 861,207.40, 1,291,292.70 and 441,303.40 is: 661,689.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,207.40 : 1,291,292.70 = 441,303.40 : x
  2. Step 2: Convert to fraction form
    861,207.40/1,291,292.70 = 441,303.40/x
  3. Step 3: Cross multiply
    861,207.40x = 1,291,292.70 × 441,303.40
  4. Step 4: Simplify right side
    861,207.40x = 569,851,858,905.18
  5. Step 5: Solve for x
    x = 569,851,858,905.18/861,207.40
  6. Step 6: Final answer
    x = 661,689.46

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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.