Home / 760,551.78-1,049,561.68-421,020.02

Finding the Fourth Proportional to 760,551.78, 1,049,561.68 and 421,020.02

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Solution

The fourth proportional to 760,551.78, 1,049,561.68 and 421,020.02 is: 581,007.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,551.78 : 1,049,561.68 = 421,020.02 : x
  2. Step 2: Convert to fraction form
    760,551.78/1,049,561.68 = 421,020.02/x
  3. Step 3: Cross multiply
    760,551.78x = 1,049,561.68 × 421,020.02
  4. Step 4: Simplify right side
    760,551.78x = 441,886,479,504.83
  5. Step 5: Solve for x
    x = 441,886,479,504.83/760,551.78
  6. Step 6: Final answer
    x = 581,007.75

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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.