Home / 815,690.09-1,125,621.02-453,136.77

Finding the Fourth Proportional to 815,690.09, 1,125,621.02 and 453,136.77

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Solution

The fourth proportional to 815,690.09, 1,125,621.02 and 453,136.77 is: 625,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,690.09 : 1,125,621.02 = 453,136.77 : x
  2. Step 2: Convert to fraction form
    815,690.09/1,125,621.02 = 453,136.77/x
  3. Step 3: Cross multiply
    815,690.09x = 1,125,621.02 × 453,136.77
  4. Step 4: Simplify right side
    815,690.09x = 510,060,273,246.91
  5. Step 5: Solve for x
    x = 510,060,273,246.91/815,690.09
  6. Step 6: Final answer
    x = 625,311.36

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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.