Home / 688,503.20-1,032,754.80-511,356.20

Finding the Fourth Proportional to 688,503.20, 1,032,754.80 and 511,356.20

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Solution

The fourth proportional to 688,503.20, 1,032,754.80 and 511,356.20 is: 767,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,503.20 : 1,032,754.80 = 511,356.20 : x
  2. Step 2: Convert to fraction form
    688,503.20/1,032,754.80 = 511,356.20/x
  3. Step 3: Cross multiply
    688,503.20x = 1,032,754.80 × 511,356.20
  4. Step 4: Simplify right side
    688,503.20x = 528,105,570,059.76
  5. Step 5: Solve for x
    x = 528,105,570,059.76/688,503.20
  6. Step 6: Final answer
    x = 767,034.30

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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.