Home / 474,933.48-712,437.24-137,979.60

Finding the Fourth Proportional to 474,933.48, 712,437.24 and 137,979.60

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Solution

The fourth proportional to 474,933.48, 712,437.24 and 137,979.60 is: 206,980.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,933.48 : 712,437.24 = 137,979.60 : x
  2. Step 2: Convert to fraction form
    474,933.48/712,437.24 = 137,979.60/x
  3. Step 3: Cross multiply
    474,933.48x = 712,437.24 × 137,979.60
  4. Step 4: Simplify right side
    474,933.48x = 98,301,805,400.30
  5. Step 5: Solve for x
    x = 98,301,805,400.30/474,933.48
  6. Step 6: Final answer
    x = 206,980.16

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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.