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Finding the Fourth Proportional to 897,241.60, 1,345,400.70 and 266,073.40

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Solution

The fourth proportional to 897,241.60, 1,345,400.70 and 266,073.40 is: 398,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,241.60 : 1,345,400.70 = 266,073.40 : x
  2. Step 2: Convert to fraction form
    897,241.60/1,345,400.70 = 266,073.40/x
  3. Step 3: Cross multiply
    897,241.60x = 1,345,400.70 × 266,073.40
  4. Step 4: Simplify right side
    897,241.60x = 357,975,338,611.38
  5. Step 5: Solve for x
    x = 357,975,338,611.38/897,241.60
  6. Step 6: Final answer
    x = 398,973.18

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Double scale
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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.