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Finding the Fourth Proportional to 874,956.90, 1,207,440.27 and 472,548.90

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Solution

The fourth proportional to 874,956.90, 1,207,440.27 and 472,548.90 is: 652,117.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,956.90 : 1,207,440.27 = 472,548.90 : x
  2. Step 2: Convert to fraction form
    874,956.90/1,207,440.27 = 472,548.90/x
  3. Step 3: Cross multiply
    874,956.90x = 1,207,440.27 × 472,548.90
  4. Step 4: Simplify right side
    874,956.90x = 570,574,571,404.20
  5. Step 5: Solve for x
    x = 570,574,571,404.20/874,956.90
  6. Step 6: Final answer
    x = 652,117.35

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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.