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Finding the Fourth Proportional to 605,867.80, 908,801.70 and 307,269.40

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Solution

The fourth proportional to 605,867.80, 908,801.70 and 307,269.40 is: 460,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,867.80 : 908,801.70 = 307,269.40 : x
  2. Step 2: Convert to fraction form
    605,867.80/908,801.70 = 307,269.40/x
  3. Step 3: Cross multiply
    605,867.80x = 908,801.70 × 307,269.40
  4. Step 4: Simplify right side
    605,867.80x = 279,246,953,077.98
  5. Step 5: Solve for x
    x = 279,246,953,077.98/605,867.80
  6. Step 6: Final answer
    x = 460,904.10

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Similar ratio
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1.5x scale

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.