Home / 687,335.04-1,031,069.52-255,168.72

Finding the Fourth Proportional to 687,335.04, 1,031,069.52 and 255,168.72

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Solution

The fourth proportional to 687,335.04, 1,031,069.52 and 255,168.72 is: 382,777.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,335.04 : 1,031,069.52 = 255,168.72 : x
  2. Step 2: Convert to fraction form
    687,335.04/1,031,069.52 = 255,168.72/x
  3. Step 3: Cross multiply
    687,335.04x = 1,031,069.52 × 255,168.72
  4. Step 4: Simplify right side
    687,335.04x = 263,096,689,649.41
  5. Step 5: Solve for x
    x = 263,096,689,649.41/687,335.04
  6. Step 6: Final answer
    x = 382,777.94

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1.5x scale

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.