Home / 1,007,478.40-1,511,217.60-996,980.80

Finding the Fourth Proportional to 1,007,478.40, 1,511,217.60 and 996,980.80

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Solution

The fourth proportional to 1,007,478.40, 1,511,217.60 and 996,980.80 is: 1,495,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,478.40 : 1,511,217.60 = 996,980.80 : x
  2. Step 2: Convert to fraction form
    1,007,478.40/1,511,217.60 = 996,980.80/x
  3. Step 3: Cross multiply
    1,007,478.40x = 1,511,217.60 × 996,980.80
  4. Step 4: Simplify right side
    1,007,478.40x = 1,506,654,931,822.08
  5. Step 5: Solve for x
    x = 1,506,654,931,822.08/1,007,478.40
  6. Step 6: Final answer
    x = 1,495,471.20

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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.