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Finding the Fourth Proportional to 897,998.75, 1,347,220.07 and 266,909.93

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Solution

The fourth proportional to 897,998.75, 1,347,220.07 and 266,909.93 is: 400,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,998.75 : 1,347,220.07 = 266,909.93 : x
  2. Step 2: Convert to fraction form
    897,998.75/1,347,220.07 = 266,909.93/x
  3. Step 3: Cross multiply
    897,998.75x = 1,347,220.07 × 266,909.93
  4. Step 4: Simplify right side
    897,998.75x = 359,586,414,578.30
  5. Step 5: Solve for x
    x = 359,586,414,578.30/897,998.75
  6. Step 6: Final answer
    x = 400,430.86

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Double scale
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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.