Home / 815,299.76-1,125,076.10-452,746.80

Finding the Fourth Proportional to 815,299.76, 1,125,076.10 and 452,746.80

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Solution

The fourth proportional to 815,299.76, 1,125,076.10 and 452,746.80 is: 624,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,299.76 : 1,125,076.10 = 452,746.80 : x
  2. Step 2: Convert to fraction form
    815,299.76/1,125,076.10 = 452,746.80/x
  3. Step 3: Cross multiply
    815,299.76x = 1,125,076.10 × 452,746.80
  4. Step 4: Simplify right side
    815,299.76x = 509,374,601,767.75
  5. Step 5: Solve for x
    x = 509,374,601,767.75/815,299.76
  6. Step 6: Final answer
    x = 624,769.72

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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.