Home / 815,343.66-1,125,136.35-452,790.72

Finding the Fourth Proportional to 815,343.66, 1,125,136.35 and 452,790.72

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Solution

The fourth proportional to 815,343.66, 1,125,136.35 and 452,790.72 is: 624,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,343.66 : 1,125,136.35 = 452,790.72 : x
  2. Step 2: Convert to fraction form
    815,343.66/1,125,136.35 = 452,790.72/x
  3. Step 3: Cross multiply
    815,343.66x = 1,125,136.35 × 452,790.72
  4. Step 4: Simplify right side
    815,343.66x = 509,451,298,014.67
  5. Step 5: Solve for x
    x = 509,451,298,014.67/815,343.66
  6. Step 6: Final answer
    x = 624,830.15

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Double scale
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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.