Home / 688,374.52-1,032,405.85-261,758.25

Finding the Fourth Proportional to 688,374.52, 1,032,405.85 and 261,758.25

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Solution

The fourth proportional to 688,374.52, 1,032,405.85 and 261,758.25 is: 392,578.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,374.52 : 1,032,405.85 = 261,758.25 : x
  2. Step 2: Convert to fraction form
    688,374.52/1,032,405.85 = 261,758.25/x
  3. Step 3: Cross multiply
    688,374.52x = 1,032,405.85 × 261,758.25
  4. Step 4: Simplify right side
    688,374.52x = 270,240,748,912.96
  5. Step 5: Solve for x
    x = 270,240,748,912.96/688,374.52
  6. Step 6: Final answer
    x = 392,578.08

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1.5x scale

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.