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Finding the Fourth Proportional to 680,040, 1,020,053.93 and 253,561.32

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Solution

The fourth proportional to 680,040, 1,020,053.93 and 253,561.32 is: 380,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,040 : 1,020,053.93 = 253,561.32 : x
  2. Step 2: Convert to fraction form
    680,040/1,020,053.93 = 253,561.32/x
  3. Step 3: Cross multiply
    680,040x = 1,020,053.93 × 253,561.32
  4. Step 4: Simplify right side
    680,040x = 258,646,219,694.18
  5. Step 5: Solve for x
    x = 258,646,219,694.18/680,040
  6. Step 6: Final answer
    x = 380,339.71

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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.