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Finding the Fourth Proportional to 632,209.23, 872,448.71 and 345,729.51

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Solution

The fourth proportional to 632,209.23, 872,448.71 and 345,729.51 is: 477,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,209.23 : 872,448.71 = 345,729.51 : x
  2. Step 2: Convert to fraction form
    632,209.23/872,448.71 = 345,729.51/x
  3. Step 3: Cross multiply
    632,209.23x = 872,448.71 × 345,729.51
  4. Step 4: Simplify right side
    632,209.23x = 301,631,263,279.79
  5. Step 5: Solve for x
    x = 301,631,263,279.79/632,209.23
  6. Step 6: Final answer
    x = 477,106.71

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1.5x scale

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.