Home / 876,649.27-1,209,764.16-489,470.65

Finding the Fourth Proportional to 876,649.27, 1,209,764.16 and 489,470.65

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Solution

The fourth proportional to 876,649.27, 1,209,764.16 and 489,470.65 is: 675,462.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,649.27 : 1,209,764.16 = 489,470.65 : x
  2. Step 2: Convert to fraction form
    876,649.27/1,209,764.16 = 489,470.65/x
  3. Step 3: Cross multiply
    876,649.27x = 1,209,764.16 × 489,470.65
  4. Step 4: Simplify right side
    876,649.27x = 592,144,047,294.55
  5. Step 5: Solve for x
    x = 592,144,047,294.55/876,649.27
  6. Step 6: Final answer
    x = 675,462.89

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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.