Home / 687,952.80-1,031,880.60-238,564.80

Finding the Fourth Proportional to 687,952.80, 1,031,880.60 and 238,564.80

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Solution

The fourth proportional to 687,952.80, 1,031,880.60 and 238,564.80 is: 357,830.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,952.80 : 1,031,880.60 = 238,564.80 : x
  2. Step 2: Convert to fraction form
    687,952.80/1,031,880.60 = 238,564.80/x
  3. Step 3: Cross multiply
    687,952.80x = 1,031,880.60 × 238,564.80
  4. Step 4: Simplify right side
    687,952.80x = 246,170,388,962.88
  5. Step 5: Solve for x
    x = 246,170,388,962.88/687,952.80
  6. Step 6: Final answer
    x = 357,830.35

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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.