Home / 977,100.30-1,465,650.45-811,212.30

Finding the Fourth Proportional to 977,100.30, 1,465,650.45 and 811,212.30

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Solution

The fourth proportional to 977,100.30, 1,465,650.45 and 811,212.30 is: 1,216,818.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,100.30 : 1,465,650.45 = 811,212.30 : x
  2. Step 2: Convert to fraction form
    977,100.30/1,465,650.45 = 811,212.30/x
  3. Step 3: Cross multiply
    977,100.30x = 1,465,650.45 × 811,212.30
  4. Step 4: Simplify right side
    977,100.30x = 1,188,953,672,540.53
  5. Step 5: Solve for x
    x = 1,188,953,672,540.53/977,100.30
  6. Step 6: Final answer
    x = 1,216,818.45

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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.