Home / 791,402.40-1,187,103.60-286,205.40

Finding the Fourth Proportional to 791,402.40, 1,187,103.60 and 286,205.40

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Solution

The fourth proportional to 791,402.40, 1,187,103.60 and 286,205.40 is: 429,308.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,402.40 : 1,187,103.60 = 286,205.40 : x
  2. Step 2: Convert to fraction form
    791,402.40/1,187,103.60 = 286,205.40/x
  3. Step 3: Cross multiply
    791,402.40x = 1,187,103.60 × 286,205.40
  4. Step 4: Simplify right side
    791,402.40x = 339,755,460,679.44
  5. Step 5: Solve for x
    x = 339,755,460,679.44/791,402.40
  6. Step 6: Final answer
    x = 429,308.10

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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.