Home / 915,016.38-1,262,722.72-507,144.55

Finding the Fourth Proportional to 915,016.38, 1,262,722.72 and 507,144.55

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Solution

The fourth proportional to 915,016.38, 1,262,722.72 and 507,144.55 is: 699,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,016.38 : 1,262,722.72 = 507,144.55 : x
  2. Step 2: Convert to fraction form
    915,016.38/1,262,722.72 = 507,144.55/x
  3. Step 3: Cross multiply
    915,016.38x = 1,262,722.72 × 507,144.55
  4. Step 4: Simplify right side
    915,016.38x = 640,382,939,916.65
  5. Step 5: Solve for x
    x = 640,382,939,916.65/915,016.38
  6. Step 6: Final answer
    x = 699,859.54

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Double scale
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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.