Home / 977,099.80-1,465,649.70-811,211.80

Finding the Fourth Proportional to 977,099.80, 1,465,649.70 and 811,211.80

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Solution

The fourth proportional to 977,099.80, 1,465,649.70 and 811,211.80 is: 1,216,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,099.80 : 1,465,649.70 = 811,211.80 : x
  2. Step 2: Convert to fraction form
    977,099.80/1,465,649.70 = 811,211.80/x
  3. Step 3: Cross multiply
    977,099.80x = 1,465,649.70 × 811,211.80
  4. Step 4: Simplify right side
    977,099.80x = 1,188,952,331,306.46
  5. Step 5: Solve for x
    x = 1,188,952,331,306.46/977,099.80
  6. Step 6: Final answer
    x = 1,216,817.70

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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.