Home / 782,347.19-1,173,520.80-427,167.45

Finding the Fourth Proportional to 782,347.19, 1,173,520.80 and 427,167.45

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Solution

The fourth proportional to 782,347.19, 1,173,520.80 and 427,167.45 is: 640,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,347.19 : 1,173,520.80 = 427,167.45 : x
  2. Step 2: Convert to fraction form
    782,347.19/1,173,520.80 = 427,167.45/x
  3. Step 3: Cross multiply
    782,347.19x = 1,173,520.80 × 427,167.45
  4. Step 4: Simplify right side
    782,347.19x = 501,289,887,657.96
  5. Step 5: Solve for x
    x = 501,289,887,657.96/782,347.19
  6. Step 6: Final answer
    x = 640,751.19

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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.