Home / 688,511.20-1,032,766.80-511,364.20

Finding the Fourth Proportional to 688,511.20, 1,032,766.80 and 511,364.20

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Solution

The fourth proportional to 688,511.20, 1,032,766.80 and 511,364.20 is: 767,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,511.20 : 1,032,766.80 = 511,364.20 : x
  2. Step 2: Convert to fraction form
    688,511.20/1,032,766.80 = 511,364.20/x
  3. Step 3: Cross multiply
    688,511.20x = 1,032,766.80 × 511,364.20
  4. Step 4: Simplify right side
    688,511.20x = 528,119,968,468.56
  5. Step 5: Solve for x
    x = 528,119,968,468.56/688,511.20
  6. Step 6: Final answer
    x = 767,046.30

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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.