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Finding the Fourth Proportional to 977,204.70, 1,465,807.05 and 819,740.70

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Solution

The fourth proportional to 977,204.70, 1,465,807.05 and 819,740.70 is: 1,229,611.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,204.70 : 1,465,807.05 = 819,740.70 : x
  2. Step 2: Convert to fraction form
    977,204.70/1,465,807.05 = 819,740.70/x
  3. Step 3: Cross multiply
    977,204.70x = 1,465,807.05 × 819,740.70
  4. Step 4: Simplify right side
    977,204.70x = 1,201,581,697,231.94
  5. Step 5: Solve for x
    x = 1,201,581,697,231.94/977,204.70
  6. Step 6: Final answer
    x = 1,229,611.05

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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.