Home / 817,258.38-1,127,971.89-511,476.90

Finding the Fourth Proportional to 817,258.38, 1,127,971.89 and 511,476.90

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Solution

The fourth proportional to 817,258.38, 1,127,971.89 and 511,476.90 is: 705,935.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,258.38 : 1,127,971.89 = 511,476.90 : x
  2. Step 2: Convert to fraction form
    817,258.38/1,127,971.89 = 511,476.90/x
  3. Step 3: Cross multiply
    817,258.38x = 1,127,971.89 × 511,476.90
  4. Step 4: Simplify right side
    817,258.38x = 576,931,565,584.34
  5. Step 5: Solve for x
    x = 576,931,565,584.34/817,258.38
  6. Step 6: Final answer
    x = 705,935.33

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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.