Home / 424,747.72-637,212.78-140,423.08

Finding the Fourth Proportional to 424,747.72, 637,212.78 and 140,423.08

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Solution

The fourth proportional to 424,747.72, 637,212.78 and 140,423.08 is: 210,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,747.72 : 637,212.78 = 140,423.08 : x
  2. Step 2: Convert to fraction form
    424,747.72/637,212.78 = 140,423.08/x
  3. Step 3: Cross multiply
    424,747.72x = 637,212.78 × 140,423.08
  4. Step 4: Simplify right side
    424,747.72x = 89,479,381,182.96
  5. Step 5: Solve for x
    x = 89,479,381,182.96/424,747.72
  6. Step 6: Final answer
    x = 210,664.77

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1.5x scale

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.