Home / 479,939.12-662,288.83-286,565.19

Finding the Fourth Proportional to 479,939.12, 662,288.83 and 286,565.19

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Solution

The fourth proportional to 479,939.12, 662,288.83 and 286,565.19 is: 395,443.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,939.12 : 662,288.83 = 286,565.19 : x
  2. Step 2: Convert to fraction form
    479,939.12/662,288.83 = 286,565.19/x
  3. Step 3: Cross multiply
    479,939.12x = 662,288.83 × 286,565.19
  4. Step 4: Simplify right side
    479,939.12x = 189,788,925,735.17
  5. Step 5: Solve for x
    x = 189,788,925,735.17/479,939.12
  6. Step 6: Final answer
    x = 395,443.75

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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.