Home / 674,519.52-930,890.02-384,143.38

Finding the Fourth Proportional to 674,519.52, 930,890.02 and 384,143.38

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Solution

The fourth proportional to 674,519.52, 930,890.02 and 384,143.38 is: 530,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,519.52 : 930,890.02 = 384,143.38 : x
  2. Step 2: Convert to fraction form
    674,519.52/930,890.02 = 384,143.38/x
  3. Step 3: Cross multiply
    674,519.52x = 930,890.02 × 384,143.38
  4. Step 4: Simplify right side
    674,519.52x = 357,595,236,123.75
  5. Step 5: Solve for x
    x = 357,595,236,123.75/674,519.52
  6. Step 6: Final answer
    x = 530,148.09

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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.