Home / 872,490.87-1,307,399.51-587,125.65

Finding the Fourth Proportional to 872,490.87, 1,307,399.51 and 587,125.65

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Solution

The fourth proportional to 872,490.87, 1,307,399.51 and 587,125.65 is: 879,788.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,490.87 : 1,307,399.51 = 587,125.65 : x
  2. Step 2: Convert to fraction form
    872,490.87/1,307,399.51 = 587,125.65/x
  3. Step 3: Cross multiply
    872,490.87x = 1,307,399.51 × 587,125.65
  4. Step 4: Simplify right side
    872,490.87x = 767,607,784,182.80
  5. Step 5: Solve for x
    x = 767,607,784,182.80/872,490.87
  6. Step 6: Final answer
    x = 879,788.90

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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.