Home / 390,593.04-585,889.56-124,435.20

Finding the Fourth Proportional to 390,593.04, 585,889.56 and 124,435.20

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Solution

The fourth proportional to 390,593.04, 585,889.56 and 124,435.20 is: 186,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,593.04 : 585,889.56 = 124,435.20 : x
  2. Step 2: Convert to fraction form
    390,593.04/585,889.56 = 124,435.20/x
  3. Step 3: Cross multiply
    390,593.04x = 585,889.56 × 124,435.20
  4. Step 4: Simplify right side
    390,593.04x = 72,905,284,576.51
  5. Step 5: Solve for x
    x = 72,905,284,576.51/390,593.04
  6. Step 6: Final answer
    x = 186,652.80

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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.