Home / 877,310.55-1,316,452.41-428,035.14

Finding the Fourth Proportional to 877,310.55, 1,316,452.41 and 428,035.14

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Solution

The fourth proportional to 877,310.55, 1,316,452.41 and 428,035.14 is: 642,290.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,310.55 : 1,316,452.41 = 428,035.14 : x
  2. Step 2: Convert to fraction form
    877,310.55/1,316,452.41 = 428,035.14/x
  3. Step 3: Cross multiply
    877,310.55x = 1,316,452.41 × 428,035.14
  4. Step 4: Simplify right side
    877,310.55x = 563,487,891,617.69
  5. Step 5: Solve for x
    x = 563,487,891,617.69/877,310.55
  6. Step 6: Final answer
    x = 642,290.11

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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.