Home / 925,156.36-1,387,938.66-393,132.16

Finding the Fourth Proportional to 925,156.36, 1,387,938.66 and 393,132.16

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Solution

The fourth proportional to 925,156.36, 1,387,938.66 and 393,132.16 is: 589,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,156.36 : 1,387,938.66 = 393,132.16 : x
  2. Step 2: Convert to fraction form
    925,156.36/1,387,938.66 = 393,132.16/x
  3. Step 3: Cross multiply
    925,156.36x = 1,387,938.66 × 393,132.16
  4. Step 4: Simplify right side
    925,156.36x = 545,643,323,353.31
  5. Step 5: Solve for x
    x = 545,643,323,353.31/925,156.36
  6. Step 6: Final answer
    x = 589,784.98

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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.