Home / 687,014.76-1,030,818.78-371,693.64

Finding the Fourth Proportional to 687,014.76, 1,030,818.78 and 371,693.64

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Solution

The fourth proportional to 687,014.76, 1,030,818.78 and 371,693.64 is: 557,700.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,014.76 : 1,030,818.78 = 371,693.64 : x
  2. Step 2: Convert to fraction form
    687,014.76/1,030,818.78 = 371,693.64/x
  3. Step 3: Cross multiply
    687,014.76x = 1,030,818.78 × 371,693.64
  4. Step 4: Simplify right side
    687,014.76x = 383,148,784,518.56
  5. Step 5: Solve for x
    x = 383,148,784,518.56/687,014.76
  6. Step 6: Final answer
    x = 557,700.95

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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.