Home / 910,481.78-1,256,465.10-502,583.87

Finding the Fourth Proportional to 910,481.78, 1,256,465.10 and 502,583.87

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Solution

The fourth proportional to 910,481.78, 1,256,465.10 and 502,583.87 is: 693,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,481.78 : 1,256,465.10 = 502,583.87 : x
  2. Step 2: Convert to fraction form
    910,481.78/1,256,465.10 = 502,583.87/x
  3. Step 3: Cross multiply
    910,481.78x = 1,256,465.10 × 502,583.87
  4. Step 4: Simplify right side
    910,481.78x = 631,479,083,682.69
  5. Step 5: Solve for x
    x = 631,479,083,682.69/910,481.78
  6. Step 6: Final answer
    x = 693,565.87

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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.