Home / 1,431,615.18-2,147,423.18-420,737.08

Finding the Fourth Proportional to 1,431,615.18, 2,147,423.18 and 420,737.08

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Solution

The fourth proportional to 1,431,615.18, 2,147,423.18 and 420,737.08 is: 631,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,615.18 : 2,147,423.18 = 420,737.08 : x
  2. Step 2: Convert to fraction form
    1,431,615.18/2,147,423.18 = 420,737.08/x
  3. Step 3: Cross multiply
    1,431,615.18x = 2,147,423.18 × 420,737.08
  4. Step 4: Simplify right side
    1,431,615.18x = 903,500,558,277.52
  5. Step 5: Solve for x
    x = 903,500,558,277.52/1,431,615.18
  6. Step 6: Final answer
    x = 631,105.74

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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.