Home / 877,555.80-1,315,944.90-404,386.20

Finding the Fourth Proportional to 877,555.80, 1,315,944.90 and 404,386.20

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Solution

The fourth proportional to 877,555.80, 1,315,944.90 and 404,386.20 is: 606,400.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,555.80 : 1,315,944.90 = 404,386.20 : x
  2. Step 2: Convert to fraction form
    877,555.80/1,315,944.90 = 404,386.20/x
  3. Step 3: Cross multiply
    877,555.80x = 1,315,944.90 × 404,386.20
  4. Step 4: Simplify right side
    877,555.80x = 532,149,957,520.38
  5. Step 5: Solve for x
    x = 532,149,957,520.38/877,555.80
  6. Step 6: Final answer
    x = 606,400.14

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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.