Home / 988,871.60-1,483,307.40-278,890.40

Finding the Fourth Proportional to 988,871.60, 1,483,307.40 and 278,890.40

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Solution

The fourth proportional to 988,871.60, 1,483,307.40 and 278,890.40 is: 418,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,871.60 : 1,483,307.40 = 278,890.40 : x
  2. Step 2: Convert to fraction form
    988,871.60/1,483,307.40 = 278,890.40/x
  3. Step 3: Cross multiply
    988,871.60x = 1,483,307.40 × 278,890.40
  4. Step 4: Simplify right side
    988,871.60x = 413,680,194,108.96
  5. Step 5: Solve for x
    x = 413,680,194,108.96/988,871.60
  6. Step 6: Final answer
    x = 418,335.60

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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.