Home / 689,909.86-1,035,036.96-240,637.18

Finding the Fourth Proportional to 689,909.86, 1,035,036.96 and 240,637.18

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Solution

The fourth proportional to 689,909.86, 1,035,036.96 and 240,637.18 is: 361,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,909.86 : 1,035,036.96 = 240,637.18 : x
  2. Step 2: Convert to fraction form
    689,909.86/1,035,036.96 = 240,637.18/x
  3. Step 3: Cross multiply
    689,909.86x = 1,035,036.96 × 240,637.18
  4. Step 4: Simplify right side
    689,909.86x = 249,068,375,250.17
  5. Step 5: Solve for x
    x = 249,068,375,250.17/689,909.86
  6. Step 6: Final answer
    x = 361,015.82

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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.