Home / 940,726.14-1,298,211.75-511,014.78

Finding the Fourth Proportional to 940,726.14, 1,298,211.75 and 511,014.78

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Solution

The fourth proportional to 940,726.14, 1,298,211.75 and 511,014.78 is: 705,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,726.14 : 1,298,211.75 = 511,014.78 : x
  2. Step 2: Convert to fraction form
    940,726.14/1,298,211.75 = 511,014.78/x
  3. Step 3: Cross multiply
    940,726.14x = 1,298,211.75 × 511,014.78
  4. Step 4: Simplify right side
    940,726.14x = 663,405,391,819.67
  5. Step 5: Solve for x
    x = 663,405,391,819.67/940,726.14
  6. Step 6: Final answer
    x = 705,205.65

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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.