Home / 1,587,938.60-2,380,568.97-688,703.06

Finding the Fourth Proportional to 1,587,938.60, 2,380,568.97 and 688,703.06

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Solution

The fourth proportional to 1,587,938.60, 2,380,568.97 and 688,703.06 is: 1,032,473.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,938.60 : 2,380,568.97 = 688,703.06 : x
  2. Step 2: Convert to fraction form
    1,587,938.60/2,380,568.97 = 688,703.06/x
  3. Step 3: Cross multiply
    1,587,938.60x = 2,380,568.97 × 688,703.06
  4. Step 4: Simplify right side
    1,587,938.60x = 1,639,505,140,131.47
  5. Step 5: Solve for x
    x = 1,639,505,140,131.47/1,587,938.60
  6. Step 6: Final answer
    x = 1,032,473.89

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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.