Home / 988,836.60-1,483,254.90-278,855.40

Finding the Fourth Proportional to 988,836.60, 1,483,254.90 and 278,855.40

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Solution

The fourth proportional to 988,836.60, 1,483,254.90 and 278,855.40 is: 418,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,836.60 : 1,483,254.90 = 278,855.40 : x
  2. Step 2: Convert to fraction form
    988,836.60/1,483,254.90 = 278,855.40/x
  3. Step 3: Cross multiply
    988,836.60x = 1,483,254.90 × 278,855.40
  4. Step 4: Simplify right side
    988,836.60x = 413,613,638,441.46
  5. Step 5: Solve for x
    x = 413,613,638,441.46/988,836.60
  6. Step 6: Final answer
    x = 418,283.10

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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.