Home / 758,126.53-1,045,776.04-489,854.53

Finding the Fourth Proportional to 758,126.53, 1,045,776.04 and 489,854.53

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Solution

The fourth proportional to 758,126.53, 1,045,776.04 and 489,854.53 is: 675,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,126.53 : 1,045,776.04 = 489,854.53 : x
  2. Step 2: Convert to fraction form
    758,126.53/1,045,776.04 = 489,854.53/x
  3. Step 3: Cross multiply
    758,126.53x = 1,045,776.04 × 489,854.53
  4. Step 4: Simplify right side
    758,126.53x = 512,278,130,559.46
  5. Step 5: Solve for x
    x = 512,278,130,559.46/758,126.53
  6. Step 6: Final answer
    x = 675,715.87

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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.