Home / 1,687,313.80-2,531,189.40-834,821.20

Finding the Fourth Proportional to 1,687,313.80, 2,531,189.40 and 834,821.20

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Solution

The fourth proportional to 1,687,313.80, 2,531,189.40 and 834,821.20 is: 1,252,340.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,313.80 : 2,531,189.40 = 834,821.20 : x
  2. Step 2: Convert to fraction form
    1,687,313.80/2,531,189.40 = 834,821.20/x
  3. Step 3: Cross multiply
    1,687,313.80x = 2,531,189.40 × 834,821.20
  4. Step 4: Simplify right side
    1,687,313.80x = 2,113,090,572,335.28
  5. Step 5: Solve for x
    x = 2,113,090,572,335.28/1,687,313.80
  6. Step 6: Final answer
    x = 1,252,340.00

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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.