Home / 687,366.10-1,031,139.60-255,024.67

Finding the Fourth Proportional to 687,366.10, 1,031,139.60 and 255,024.67

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Solution

The fourth proportional to 687,366.10, 1,031,139.60 and 255,024.67 is: 382,570.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,366.10 : 1,031,139.60 = 255,024.67 : x
  2. Step 2: Convert to fraction form
    687,366.10/1,031,139.60 = 255,024.67/x
  3. Step 3: Cross multiply
    687,366.10x = 1,031,139.60 × 255,024.67
  4. Step 4: Simplify right side
    687,366.10x = 262,966,036,213.93
  5. Step 5: Solve for x
    x = 262,966,036,213.93/687,366.10
  6. Step 6: Final answer
    x = 382,570.56

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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.