Home / 1,548,427-2,136,830.88-869,365.12

Finding the Fourth Proportional to 1,548,427, 2,136,830.88 and 869,365.12

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Solution

The fourth proportional to 1,548,427, 2,136,830.88 and 869,365.12 is: 1,199,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548,427 : 2,136,830.88 = 869,365.12 : x
  2. Step 2: Convert to fraction form
    1,548,427/2,136,830.88 = 869,365.12/x
  3. Step 3: Cross multiply
    1,548,427x = 2,136,830.88 × 869,365.12
  4. Step 4: Simplify right side
    1,548,427x = 1,857,686,234,410.91
  5. Step 5: Solve for x
    x = 1,857,686,234,410.91/1,548,427
  6. Step 6: Final answer
    x = 1,199,724.78

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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.