Home / 639,089.13-958,764.83-260,008.86

Finding the Fourth Proportional to 639,089.13, 958,764.83 and 260,008.86

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Solution

The fourth proportional to 639,089.13, 958,764.83 and 260,008.86 is: 390,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,089.13 : 958,764.83 = 260,008.86 : x
  2. Step 2: Convert to fraction form
    639,089.13/958,764.83 = 260,008.86/x
  3. Step 3: Cross multiply
    639,089.13x = 958,764.83 × 260,008.86
  4. Step 4: Simplify right side
    639,089.13x = 249,287,349,156.35
  5. Step 5: Solve for x
    x = 249,287,349,156.35/639,089.13
  6. Step 6: Final answer
    x = 390,066.64

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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.