Home / 1,005,983.40-1,508,975.10-687,118.80

Finding the Fourth Proportional to 1,005,983.40, 1,508,975.10 and 687,118.80

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Solution

The fourth proportional to 1,005,983.40, 1,508,975.10 and 687,118.80 is: 1,030,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,983.40 : 1,508,975.10 = 687,118.80 : x
  2. Step 2: Convert to fraction form
    1,005,983.40/1,508,975.10 = 687,118.80/x
  3. Step 3: Cross multiply
    1,005,983.40x = 1,508,975.10 × 687,118.80
  4. Step 4: Simplify right side
    1,005,983.40x = 1,036,845,159,941.88
  5. Step 5: Solve for x
    x = 1,036,845,159,941.88/1,005,983.40
  6. Step 6: Final answer
    x = 1,030,678.20

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Similar ratio
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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.