Home / 750,511.18-1,035,685.22-428,215.42

Finding the Fourth Proportional to 750,511.18, 1,035,685.22 and 428,215.42

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Solution

The fourth proportional to 750,511.18, 1,035,685.22 and 428,215.42 is: 590,925.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,511.18 : 1,035,685.22 = 428,215.42 : x
  2. Step 2: Convert to fraction form
    750,511.18/1,035,685.22 = 428,215.42/x
  3. Step 3: Cross multiply
    750,511.18x = 1,035,685.22 × 428,215.42
  4. Step 4: Simplify right side
    750,511.18x = 443,496,381,470.09
  5. Step 5: Solve for x
    x = 443,496,381,470.09/750,511.18
  6. Step 6: Final answer
    x = 590,925.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.