Home / 687,615.50-1,031,838-293,631.50

Finding the Fourth Proportional to 687,615.50, 1,031,838 and 293,631.50

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Solution

The fourth proportional to 687,615.50, 1,031,838 and 293,631.50 is: 440,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,615.50 : 1,031,838 = 293,631.50 : x
  2. Step 2: Convert to fraction form
    687,615.50/1,031,838 = 293,631.50/x
  3. Step 3: Cross multiply
    687,615.50x = 1,031,838 × 293,631.50
  4. Step 4: Simplify right side
    687,615.50x = 302,980,139,697
  5. Step 5: Solve for x
    x = 302,980,139,697/687,615.50
  6. Step 6: Final answer
    x = 440,624.36

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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.