Home / 813,370.75-1,218,857.25-453,045.57

Finding the Fourth Proportional to 813,370.75, 1,218,857.25 and 453,045.57

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Solution

The fourth proportional to 813,370.75, 1,218,857.25 and 453,045.57 is: 678,900.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,370.75 : 1,218,857.25 = 453,045.57 : x
  2. Step 2: Convert to fraction form
    813,370.75/1,218,857.25 = 453,045.57/x
  3. Step 3: Cross multiply
    813,370.75x = 1,218,857.25 × 453,045.57
  4. Step 4: Simplify right side
    813,370.75x = 552,197,881,559.16
  5. Step 5: Solve for x
    x = 552,197,881,559.16/813,370.75
  6. Step 6: Final answer
    x = 678,900.59

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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.