Home / 687,410.82-1,030,870.17-238,011.08

Finding the Fourth Proportional to 687,410.82, 1,030,870.17 and 238,011.08

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Solution

The fourth proportional to 687,410.82, 1,030,870.17 and 238,011.08 is: 356,931.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,410.82 : 1,030,870.17 = 238,011.08 : x
  2. Step 2: Convert to fraction form
    687,410.82/1,030,870.17 = 238,011.08/x
  3. Step 3: Cross multiply
    687,410.82x = 1,030,870.17 × 238,011.08
  4. Step 4: Simplify right side
    687,410.82x = 245,358,517,347.13
  5. Step 5: Solve for x
    x = 245,358,517,347.13/687,410.82
  6. Step 6: Final answer
    x = 356,931.42

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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.