Home / 390,749.22-586,117.47-124,506.15

Finding the Fourth Proportional to 390,749.22, 586,117.47 and 124,506.15

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Solution

The fourth proportional to 390,749.22, 586,117.47 and 124,506.15 is: 186,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,749.22 : 586,117.47 = 124,506.15 : x
  2. Step 2: Convert to fraction form
    390,749.22/586,117.47 = 124,506.15/x
  3. Step 3: Cross multiply
    390,749.22x = 586,117.47 × 124,506.15
  4. Step 4: Simplify right side
    390,749.22x = 72,975,229,637.44
  5. Step 5: Solve for x
    x = 72,975,229,637.44/390,749.22
  6. Step 6: Final answer
    x = 186,757.20

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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.