Home / 545,749.95-747,680.16-525,295.80

Finding the Fourth Proportional to 545,749.95, 747,680.16 and 525,295.80

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Solution

The fourth proportional to 545,749.95, 747,680.16 and 525,295.80 is: 719,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,749.95 : 747,680.16 = 525,295.80 : x
  2. Step 2: Convert to fraction form
    545,749.95/747,680.16 = 525,295.80/x
  3. Step 3: Cross multiply
    545,749.95x = 747,680.16 × 525,295.80
  4. Step 4: Simplify right side
    545,749.95x = 392,753,247,791.33
  5. Step 5: Solve for x
    x = 392,753,247,791.33/545,749.95
  6. Step 6: Final answer
    x = 719,657.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.