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Finding the Fourth Proportional to 646,914.60, 970,112.70 and 225,973.80

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Solution

The fourth proportional to 646,914.60, 970,112.70 and 225,973.80 is: 338,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,914.60 : 970,112.70 = 225,973.80 : x
  2. Step 2: Convert to fraction form
    646,914.60/970,112.70 = 225,973.80/x
  3. Step 3: Cross multiply
    646,914.60x = 970,112.70 × 225,973.80
  4. Step 4: Simplify right side
    646,914.60x = 219,220,053,247.26
  5. Step 5: Solve for x
    x = 219,220,053,247.26/646,914.60
  6. Step 6: Final answer
    x = 338,870.16

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1.5x scale

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.