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Finding the Fourth Proportional to 815,323.60, 1,125,109 and 452,770.68

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Solution

The fourth proportional to 815,323.60, 1,125,109 and 452,770.68 is: 624,802.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,323.60 : 1,125,109 = 452,770.68 : x
  2. Step 2: Convert to fraction form
    815,323.60/1,125,109 = 452,770.68/x
  3. Step 3: Cross multiply
    815,323.60x = 1,125,109 × 452,770.68
  4. Step 4: Simplify right side
    815,323.60x = 509,416,367,004.12
  5. Step 5: Solve for x
    x = 509,416,367,004.12/815,323.60
  6. Step 6: Final answer
    x = 624,802.68

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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.