Home / 1,003,870.20-1,506,315.60-667,145.10

Finding the Fourth Proportional to 1,003,870.20, 1,506,315.60 and 667,145.10

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Solution

The fourth proportional to 1,003,870.20, 1,506,315.60 and 667,145.10 is: 1,001,056.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,870.20 : 1,506,315.60 = 667,145.10 : x
  2. Step 2: Convert to fraction form
    1,003,870.20/1,506,315.60 = 667,145.10/x
  3. Step 3: Cross multiply
    1,003,870.20x = 1,506,315.60 × 667,145.10
  4. Step 4: Simplify right side
    1,003,870.20x = 1,004,931,071,593.56
  5. Step 5: Solve for x
    x = 1,004,931,071,593.56/1,003,870.20
  6. Step 6: Final answer
    x = 1,001,056.78

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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.