Home / 674,246.58-930,488.55-387,766.89

Finding the Fourth Proportional to 674,246.58, 930,488.55 and 387,766.89

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Solution

The fourth proportional to 674,246.58, 930,488.55 and 387,766.89 is: 535,134.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,246.58 : 930,488.55 = 387,766.89 : x
  2. Step 2: Convert to fraction form
    674,246.58/930,488.55 = 387,766.89/x
  3. Step 3: Cross multiply
    674,246.58x = 930,488.55 × 387,766.89
  4. Step 4: Simplify right side
    674,246.58x = 360,812,651,214.11
  5. Step 5: Solve for x
    x = 360,812,651,214.11/674,246.58
  6. Step 6: Final answer
    x = 535,134.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.