Home / 915,087.78-1,372,463.07-382,465.86

Finding the Fourth Proportional to 915,087.78, 1,372,463.07 and 382,465.86

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Solution

The fourth proportional to 915,087.78, 1,372,463.07 and 382,465.86 is: 573,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,087.78 : 1,372,463.07 = 382,465.86 : x
  2. Step 2: Convert to fraction form
    915,087.78/1,372,463.07 = 382,465.86/x
  3. Step 3: Cross multiply
    915,087.78x = 1,372,463.07 × 382,465.86
  4. Step 4: Simplify right side
    915,087.78x = 524,920,268,385.79
  5. Step 5: Solve for x
    x = 524,920,268,385.79/915,087.78
  6. Step 6: Final answer
    x = 573,628.32

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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.