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Finding the Fourth Proportional to 879,902.73, 1,214,266.55 and 477,494.73

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Solution

The fourth proportional to 879,902.73, 1,214,266.55 and 477,494.73 is: 658,943.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,902.73 : 1,214,266.55 = 477,494.73 : x
  2. Step 2: Convert to fraction form
    879,902.73/1,214,266.55 = 477,494.73/x
  3. Step 3: Cross multiply
    879,902.73x = 1,214,266.55 × 477,494.73
  4. Step 4: Simplify right side
    879,902.73x = 579,805,876,052.81
  5. Step 5: Solve for x
    x = 579,805,876,052.81/879,902.73
  6. Step 6: Final answer
    x = 658,943.15

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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.