Home / 915,262.80-1,372,879.49-284,177.22

Finding the Fourth Proportional to 915,262.80, 1,372,879.49 and 284,177.22

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Solution

The fourth proportional to 915,262.80, 1,372,879.49 and 284,177.22 is: 426,261.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,262.80 : 1,372,879.49 = 284,177.22 : x
  2. Step 2: Convert to fraction form
    915,262.80/1,372,879.49 = 284,177.22/x
  3. Step 3: Cross multiply
    915,262.80x = 1,372,879.49 × 284,177.22
  4. Step 4: Simplify right side
    915,262.80x = 390,141,075,442.33
  5. Step 5: Solve for x
    x = 390,141,075,442.33/915,262.80
  6. Step 6: Final answer
    x = 426,261.26

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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.