Home / 977,172.20-1,463,684.70-811,284.20

Finding the Fourth Proportional to 977,172.20, 1,463,684.70 and 811,284.20

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Solution

The fourth proportional to 977,172.20, 1,463,684.70 and 811,284.20 is: 1,215,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,172.20 : 1,463,684.70 = 811,284.20 : x
  2. Step 2: Convert to fraction form
    977,172.20/1,463,684.70 = 811,284.20/x
  3. Step 3: Cross multiply
    977,172.20x = 1,463,684.70 × 811,284.20
  4. Step 4: Simplify right side
    977,172.20x = 1,187,464,270,891.74
  5. Step 5: Solve for x
    x = 1,187,464,270,891.74/977,172.20
  6. Step 6: Final answer
    x = 1,215,204.72

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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.