Home / 1,427,209.40-2,137,833.30-669,697.40

Finding the Fourth Proportional to 1,427,209.40, 2,137,833.30 and 669,697.40

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Solution

The fourth proportional to 1,427,209.40, 2,137,833.30 and 669,697.40 is: 1,003,147.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,209.40 : 2,137,833.30 = 669,697.40 : x
  2. Step 2: Convert to fraction form
    1,427,209.40/2,137,833.30 = 669,697.40/x
  3. Step 3: Cross multiply
    1,427,209.40x = 2,137,833.30 × 669,697.40
  4. Step 4: Simplify right side
    1,427,209.40x = 1,431,701,402,643.42
  5. Step 5: Solve for x
    x = 1,431,701,402,643.42/1,427,209.40
  6. Step 6: Final answer
    x = 1,003,147.40

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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.