Home / 877,310.40-1,314,981.45-498,412.65

Finding the Fourth Proportional to 877,310.40, 1,314,981.45 and 498,412.65

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Solution

The fourth proportional to 877,310.40, 1,314,981.45 and 498,412.65 is: 747,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,310.40 : 1,314,981.45 = 498,412.65 : x
  2. Step 2: Convert to fraction form
    877,310.40/1,314,981.45 = 498,412.65/x
  3. Step 3: Cross multiply
    877,310.40x = 1,314,981.45 × 498,412.65
  4. Step 4: Simplify right side
    877,310.40x = 655,403,389,195.34
  5. Step 5: Solve for x
    x = 655,403,389,195.34/877,310.40
  6. Step 6: Final answer
    x = 747,059.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.