Home / 687,374.11-1,030,815.11-237,974.31

Finding the Fourth Proportional to 687,374.11, 1,030,815.11 and 237,974.31

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Solution

The fourth proportional to 687,374.11, 1,030,815.11 and 237,974.31 is: 356,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,374.11 : 1,030,815.11 = 237,974.31 : x
  2. Step 2: Convert to fraction form
    687,374.11/1,030,815.11 = 237,974.31/x
  3. Step 3: Cross multiply
    687,374.11x = 1,030,815.11 × 237,974.31
  4. Step 4: Simplify right side
    687,374.11x = 245,307,514,539.82
  5. Step 5: Solve for x
    x = 245,307,514,539.82/687,374.11
  6. Step 6: Final answer
    x = 356,876.28

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1.5x scale

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.