Home / 747,475.36-1,031,157.19-489,238.61

Finding the Fourth Proportional to 747,475.36, 1,031,157.19 and 489,238.61

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Solution

The fourth proportional to 747,475.36, 1,031,157.19 and 489,238.61 is: 674,914.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,475.36 : 1,031,157.19 = 489,238.61 : x
  2. Step 2: Convert to fraction form
    747,475.36/1,031,157.19 = 489,238.61/x
  3. Step 3: Cross multiply
    747,475.36x = 1,031,157.19 × 489,238.61
  4. Step 4: Simplify right side
    747,475.36x = 504,481,911,681.90
  5. Step 5: Solve for x
    x = 504,481,911,681.90/747,475.36
  6. Step 6: Final answer
    x = 674,914.44

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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.