Home / 988,869.60-1,483,304.40-278,888.40

Finding the Fourth Proportional to 988,869.60, 1,483,304.40 and 278,888.40

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Solution

The fourth proportional to 988,869.60, 1,483,304.40 and 278,888.40 is: 418,332.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,869.60 : 1,483,304.40 = 278,888.40 : x
  2. Step 2: Convert to fraction form
    988,869.60/1,483,304.40 = 278,888.40/x
  3. Step 3: Cross multiply
    988,869.60x = 1,483,304.40 × 278,888.40
  4. Step 4: Simplify right side
    988,869.60x = 413,676,390,828.96
  5. Step 5: Solve for x
    x = 413,676,390,828.96/988,869.60
  6. Step 6: Final answer
    x = 418,332.60

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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.