Home / 687,946.80-1,031,871.60-238,558.80

Finding the Fourth Proportional to 687,946.80, 1,031,871.60 and 238,558.80

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Solution

The fourth proportional to 687,946.80, 1,031,871.60 and 238,558.80 is: 357,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,946.80 : 1,031,871.60 = 238,558.80 : x
  2. Step 2: Convert to fraction form
    687,946.80/1,031,871.60 = 238,558.80/x
  3. Step 3: Cross multiply
    687,946.80x = 1,031,871.60 × 238,558.80
  4. Step 4: Simplify right side
    687,946.80x = 246,162,050,650.08
  5. Step 5: Solve for x
    x = 246,162,050,650.08/687,946.80
  6. Step 6: Final answer
    x = 357,821.35

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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.