Home / 812,140.01-1,219,407.55-453,012.50

Finding the Fourth Proportional to 812,140.01, 1,219,407.55 and 453,012.50

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Solution

The fourth proportional to 812,140.01, 1,219,407.55 and 453,012.50 is: 680,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,140.01 : 1,219,407.55 = 453,012.50 : x
  2. Step 2: Convert to fraction form
    812,140.01/1,219,407.55 = 453,012.50/x
  3. Step 3: Cross multiply
    812,140.01x = 1,219,407.55 × 453,012.50
  4. Step 4: Simplify right side
    812,140.01x = 552,406,862,744.38
  5. Step 5: Solve for x
    x = 552,406,862,744.38/812,140.01
  6. Step 6: Final answer
    x = 680,186.74

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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.