Home / 390,041.32-584,995.08-123,742.48

Finding the Fourth Proportional to 390,041.32, 584,995.08 and 123,742.48

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Solution

The fourth proportional to 390,041.32, 584,995.08 and 123,742.48 is: 185,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,041.32 : 584,995.08 = 123,742.48 : x
  2. Step 2: Convert to fraction form
    390,041.32/584,995.08 = 123,742.48/x
  3. Step 3: Cross multiply
    390,041.32x = 584,995.08 × 123,742.48
  4. Step 4: Simplify right side
    390,041.32x = 72,388,741,987.00
  5. Step 5: Solve for x
    x = 72,388,741,987.00/390,041.32
  6. Step 6: Final answer
    x = 185,592.50

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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.