Home / 747,607.50-1,031,339.12-489,370.59

Finding the Fourth Proportional to 747,607.50, 1,031,339.12 and 489,370.59

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Solution

The fourth proportional to 747,607.50, 1,031,339.12 and 489,370.59 is: 675,096.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,607.50 : 1,031,339.12 = 489,370.59 : x
  2. Step 2: Convert to fraction form
    747,607.50/1,031,339.12 = 489,370.59/x
  3. Step 3: Cross multiply
    747,607.50x = 1,031,339.12 × 489,370.59
  4. Step 4: Simplify right side
    747,607.50x = 504,707,031,197.63
  5. Step 5: Solve for x
    x = 504,707,031,197.63/747,607.50
  6. Step 6: Final answer
    x = 675,096.27

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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.