Home / 879,439.28-1,213,453.67-552,562.92

Finding the Fourth Proportional to 879,439.28, 1,213,453.67 and 552,562.92

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Solution

The fourth proportional to 879,439.28, 1,213,453.67 and 552,562.92 is: 762,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,439.28 : 1,213,453.67 = 552,562.92 : x
  2. Step 2: Convert to fraction form
    879,439.28/1,213,453.67 = 552,562.92/x
  3. Step 3: Cross multiply
    879,439.28x = 1,213,453.67 × 552,562.92
  4. Step 4: Simplify right side
    879,439.28x = 670,509,500,417.10
  5. Step 5: Solve for x
    x = 670,509,500,417.10/879,439.28
  6. Step 6: Final answer
    x = 762,428.42

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.