Home / 1,261,631.52-1,741,046.47-688,672.15

Finding the Fourth Proportional to 1,261,631.52, 1,741,046.47 and 688,672.15

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Solution

The fourth proportional to 1,261,631.52, 1,741,046.47 and 688,672.15 is: 950,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,631.52 : 1,741,046.47 = 688,672.15 : x
  2. Step 2: Convert to fraction form
    1,261,631.52/1,741,046.47 = 688,672.15/x
  3. Step 3: Cross multiply
    1,261,631.52x = 1,741,046.47 × 688,672.15
  4. Step 4: Simplify right side
    1,261,631.52x = 1,199,010,209,670.51
  5. Step 5: Solve for x
    x = 1,199,010,209,670.51/1,261,631.52
  6. Step 6: Final answer
    x = 950,364.82

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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.