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Finding the Fourth Proportional to 550,218.63, 759,292.04 and 308,500.46

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Solution

The fourth proportional to 550,218.63, 759,292.04 and 308,500.46 is: 425,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,218.63 : 759,292.04 = 308,500.46 : x
  2. Step 2: Convert to fraction form
    550,218.63/759,292.04 = 308,500.46/x
  3. Step 3: Cross multiply
    550,218.63x = 759,292.04 × 308,500.46
  4. Step 4: Simplify right side
    550,218.63x = 234,241,938,275.38
  5. Step 5: Solve for x
    x = 234,241,938,275.38/550,218.63
  6. Step 6: Final answer
    x = 425,725.20

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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.