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Finding the Fourth Proportional to 424,260.54, 585,474.80 and 315,849.60

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Solution

The fourth proportional to 424,260.54, 585,474.80 and 315,849.60 is: 435,868.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,260.54 : 585,474.80 = 315,849.60 : x
  2. Step 2: Convert to fraction form
    424,260.54/585,474.80 = 315,849.60/x
  3. Step 3: Cross multiply
    424,260.54x = 585,474.80 × 315,849.60
  4. Step 4: Simplify right side
    424,260.54x = 184,921,979,810.83
  5. Step 5: Solve for x
    x = 184,921,979,810.83/424,260.54
  6. Step 6: Final answer
    x = 435,868.91

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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.