Home / 860,325.26-1,187,241.65-478,348.70

Finding the Fourth Proportional to 860,325.26, 1,187,241.65 and 478,348.70

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Solution

The fourth proportional to 860,325.26, 1,187,241.65 and 478,348.70 is: 660,117.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,325.26 : 1,187,241.65 = 478,348.70 : x
  2. Step 2: Convert to fraction form
    860,325.26/1,187,241.65 = 478,348.70/x
  3. Step 3: Cross multiply
    860,325.26x = 1,187,241.65 × 478,348.70
  4. Step 4: Simplify right side
    860,325.26x = 567,915,491,535.40
  5. Step 5: Solve for x
    x = 567,915,491,535.40/860,325.26
  6. Step 6: Final answer
    x = 660,117.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.