Home / 1,309,687.88-1,807,207.62-826,070.36

Finding the Fourth Proportional to 1,309,687.88, 1,807,207.62 and 826,070.36

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Solution

The fourth proportional to 1,309,687.88, 1,807,207.62 and 826,070.36 is: 1,139,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,687.88 : 1,807,207.62 = 826,070.36 : x
  2. Step 2: Convert to fraction form
    1,309,687.88/1,807,207.62 = 826,070.36/x
  3. Step 3: Cross multiply
    1,309,687.88x = 1,807,207.62 × 826,070.36
  4. Step 4: Simplify right side
    1,309,687.88x = 1,492,880,649,248.14
  5. Step 5: Solve for x
    x = 1,492,880,649,248.14/1,309,687.88
  6. Step 6: Final answer
    x = 1,139,875.14

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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.