Home / 1,008,444.20-1,512,666.30-819,487.40

Finding the Fourth Proportional to 1,008,444.20, 1,512,666.30 and 819,487.40

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Solution

The fourth proportional to 1,008,444.20, 1,512,666.30 and 819,487.40 is: 1,229,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,444.20 : 1,512,666.30 = 819,487.40 : x
  2. Step 2: Convert to fraction form
    1,008,444.20/1,512,666.30 = 819,487.40/x
  3. Step 3: Cross multiply
    1,008,444.20x = 1,512,666.30 × 819,487.40
  4. Step 4: Simplify right side
    1,008,444.20x = 1,239,610,973,254.62
  5. Step 5: Solve for x
    x = 1,239,610,973,254.62/1,008,444.20
  6. Step 6: Final answer
    x = 1,229,231.10

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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.