Home / 874,143.28-1,311,440.28-474,681.52

Finding the Fourth Proportional to 874,143.28, 1,311,440.28 and 474,681.52

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Solution

The fourth proportional to 874,143.28, 1,311,440.28 and 474,681.52 is: 712,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,143.28 : 1,311,440.28 = 474,681.52 : x
  2. Step 2: Convert to fraction form
    874,143.28/1,311,440.28 = 474,681.52/x
  3. Step 3: Cross multiply
    874,143.28x = 1,311,440.28 × 474,681.52
  4. Step 4: Simplify right side
    874,143.28x = 622,516,465,499.63
  5. Step 5: Solve for x
    x = 622,516,465,499.63/874,143.28
  6. Step 6: Final answer
    x = 712,144.66

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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.