Home / 1,985,029.66-2,977,686.78-831,115

Finding the Fourth Proportional to 1,985,029.66, 2,977,686.78 and 831,115

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Solution

The fourth proportional to 1,985,029.66, 2,977,686.78 and 831,115 is: 1,246,732.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,029.66 : 2,977,686.78 = 831,115 : x
  2. Step 2: Convert to fraction form
    1,985,029.66/2,977,686.78 = 831,115/x
  3. Step 3: Cross multiply
    1,985,029.66x = 2,977,686.78 × 831,115
  4. Step 4: Simplify right side
    1,985,029.66x = 2,474,800,148,159.70
  5. Step 5: Solve for x
    x = 2,474,800,148,159.70/1,985,029.66
  6. Step 6: Final answer
    x = 1,246,732.08

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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.