Home / 988,194.60-1,482,983.10-427,631.40

Finding the Fourth Proportional to 988,194.60, 1,482,983.10 and 427,631.40

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Solution

The fourth proportional to 988,194.60, 1,482,983.10 and 427,631.40 is: 641,746.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,194.60 : 1,482,983.10 = 427,631.40 : x
  2. Step 2: Convert to fraction form
    988,194.60/1,482,983.10 = 427,631.40/x
  3. Step 3: Cross multiply
    988,194.60x = 1,482,983.10 × 427,631.40
  4. Step 4: Simplify right side
    988,194.60x = 634,170,139,229.34
  5. Step 5: Solve for x
    x = 634,170,139,229.34/988,194.60
  6. Step 6: Final answer
    x = 641,746.21

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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.