Home / 815,865.40-1,223,312.10-500,548.60

Finding the Fourth Proportional to 815,865.40, 1,223,312.10 and 500,548.60

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Solution

The fourth proportional to 815,865.40, 1,223,312.10 and 500,548.60 is: 750,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,865.40 : 1,223,312.10 = 500,548.60 : x
  2. Step 2: Convert to fraction form
    815,865.40/1,223,312.10 = 500,548.60/x
  3. Step 3: Cross multiply
    815,865.40x = 1,223,312.10 × 500,548.60
  4. Step 4: Simplify right side
    815,865.40x = 612,327,159,018.06
  5. Step 5: Solve for x
    x = 612,327,159,018.06/815,865.40
  6. Step 6: Final answer
    x = 750,524.73

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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.