Home / 687,574.58-1,031,339.18-282,752.78

Finding the Fourth Proportional to 687,574.58, 1,031,339.18 and 282,752.78

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Solution

The fourth proportional to 687,574.58, 1,031,339.18 and 282,752.78 is: 424,119.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,574.58 : 1,031,339.18 = 282,752.78 : x
  2. Step 2: Convert to fraction form
    687,574.58/1,031,339.18 = 282,752.78/x
  3. Step 3: Cross multiply
    687,574.58x = 1,031,339.18 × 282,752.78
  4. Step 4: Simplify right side
    687,574.58x = 291,614,015,818.11
  5. Step 5: Solve for x
    x = 291,614,015,818.11/687,574.58
  6. Step 6: Final answer
    x = 424,119.84

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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.