Home / 996,988.20-1,495,482.30-642,402.60

Finding the Fourth Proportional to 996,988.20, 1,495,482.30 and 642,402.60

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Solution

The fourth proportional to 996,988.20, 1,495,482.30 and 642,402.60 is: 963,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,988.20 : 1,495,482.30 = 642,402.60 : x
  2. Step 2: Convert to fraction form
    996,988.20/1,495,482.30 = 642,402.60/x
  3. Step 3: Cross multiply
    996,988.20x = 1,495,482.30 × 642,402.60
  4. Step 4: Simplify right side
    996,988.20x = 960,701,717,773.98
  5. Step 5: Solve for x
    x = 960,701,717,773.98/996,988.20
  6. Step 6: Final answer
    x = 963,603.90

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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.