Home / 687,374.16-1,030,815.21-237,974.37

Finding the Fourth Proportional to 687,374.16, 1,030,815.21 and 237,974.37

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Solution

The fourth proportional to 687,374.16, 1,030,815.21 and 237,974.37 is: 356,876.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,374.16 : 1,030,815.21 = 237,974.37 : x
  2. Step 2: Convert to fraction form
    687,374.16/1,030,815.21 = 237,974.37/x
  3. Step 3: Cross multiply
    687,374.16x = 1,030,815.21 × 237,974.37
  4. Step 4: Simplify right side
    687,374.16x = 245,307,600,186.17
  5. Step 5: Solve for x
    x = 245,307,600,186.17/687,374.16
  6. Step 6: Final answer
    x = 356,876.38

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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.