Home / 874,948.40-1,207,428.51-472,540.40

Finding the Fourth Proportional to 874,948.40, 1,207,428.51 and 472,540.40

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Solution

The fourth proportional to 874,948.40, 1,207,428.51 and 472,540.40 is: 652,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,948.40 : 1,207,428.51 = 472,540.40 : x
  2. Step 2: Convert to fraction form
    874,948.40/1,207,428.51 = 472,540.40/x
  3. Step 3: Cross multiply
    874,948.40x = 1,207,428.51 × 472,540.40
  4. Step 4: Simplify right side
    874,948.40x = 570,558,751,086.80
  5. Step 5: Solve for x
    x = 570,558,751,086.80/874,948.40
  6. Step 6: Final answer
    x = 652,105.60

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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.