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Finding the Fourth Proportional to 628,470.61, 942,853.52 and 207,746.47

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Solution

The fourth proportional to 628,470.61, 942,853.52 and 207,746.47 is: 311,668.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,470.61 : 942,853.52 = 207,746.47 : x
  2. Step 2: Convert to fraction form
    628,470.61/942,853.52 = 207,746.47/x
  3. Step 3: Cross multiply
    628,470.61x = 942,853.52 × 207,746.47
  4. Step 4: Simplify right side
    628,470.61x = 195,874,490,507.07
  5. Step 5: Solve for x
    x = 195,874,490,507.07/628,470.61
  6. Step 6: Final answer
    x = 311,668.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.