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Finding the Fourth Proportional to 868,055.60, 1,301,046.60 and 447,114.80

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Solution

The fourth proportional to 868,055.60, 1,301,046.60 and 447,114.80 is: 670,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,055.60 : 1,301,046.60 = 447,114.80 : x
  2. Step 2: Convert to fraction form
    868,055.60/1,301,046.60 = 447,114.80/x
  3. Step 3: Cross multiply
    868,055.60x = 1,301,046.60 × 447,114.80
  4. Step 4: Simplify right side
    868,055.60x = 581,717,190,349.68
  5. Step 5: Solve for x
    x = 581,717,190,349.68/868,055.60
  6. Step 6: Final answer
    x = 670,138.17

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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.