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Finding the Fourth Proportional to 637,265.92, 879,378.56 and 365,331.20

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Solution

The fourth proportional to 637,265.92, 879,378.56 and 365,331.20 is: 504,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,265.92 : 879,378.56 = 365,331.20 : x
  2. Step 2: Convert to fraction form
    637,265.92/879,378.56 = 365,331.20/x
  3. Step 3: Cross multiply
    637,265.92x = 879,378.56 × 365,331.20
  4. Step 4: Simplify right side
    637,265.92x = 321,264,424,579.07
  5. Step 5: Solve for x
    x = 321,264,424,579.07/637,265.92
  6. Step 6: Final answer
    x = 504,129.30

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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.