Home / 872,280.11-1,307,884.34-339,179.74

Finding the Fourth Proportional to 872,280.11, 1,307,884.34 and 339,179.74

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Solution

The fourth proportional to 872,280.11, 1,307,884.34 and 339,179.74 is: 508,561.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,280.11 : 1,307,884.34 = 339,179.74 : x
  2. Step 2: Convert to fraction form
    872,280.11/1,307,884.34 = 339,179.74/x
  3. Step 3: Cross multiply
    872,280.11x = 1,307,884.34 × 339,179.74
  4. Step 4: Simplify right side
    872,280.11x = 443,607,870,391.27
  5. Step 5: Solve for x
    x = 443,607,870,391.27/872,280.11
  6. Step 6: Final answer
    x = 508,561.26

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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.