Home / 626,995.26-865,258.55-340,517.40

Finding the Fourth Proportional to 626,995.26, 865,258.55 and 340,517.40

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Solution

The fourth proportional to 626,995.26, 865,258.55 and 340,517.40 is: 469,916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,995.26 : 865,258.55 = 340,517.40 : x
  2. Step 2: Convert to fraction form
    626,995.26/865,258.55 = 340,517.40/x
  3. Step 3: Cross multiply
    626,995.26x = 865,258.55 × 340,517.40
  4. Step 4: Simplify right side
    626,995.26x = 294,635,590,071.18
  5. Step 5: Solve for x
    x = 294,635,590,071.18/626,995.26
  6. Step 6: Final answer
    x = 469,916.77

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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.