Home / 687,676.65-1,031,527.71-238,412.16

Finding the Fourth Proportional to 687,676.65, 1,031,527.71 and 238,412.16

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Solution

The fourth proportional to 687,676.65, 1,031,527.71 and 238,412.16 is: 357,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,676.65 : 1,031,527.71 = 238,412.16 : x
  2. Step 2: Convert to fraction form
    687,676.65/1,031,527.71 = 238,412.16/x
  3. Step 3: Cross multiply
    687,676.65x = 1,031,527.71 × 238,412.16
  4. Step 4: Simplify right side
    687,676.65x = 245,928,749,440.95
  5. Step 5: Solve for x
    x = 245,928,749,440.95/687,676.65
  6. Step 6: Final answer
    x = 357,622.66

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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.