Home / 760,751.67-1,049,837.39-421,219.92

Finding the Fourth Proportional to 760,751.67, 1,049,837.39 and 421,219.92

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Solution

The fourth proportional to 760,751.67, 1,049,837.39 and 421,219.92 is: 581,283.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,751.67 : 1,049,837.39 = 421,219.92 : x
  2. Step 2: Convert to fraction form
    760,751.67/1,049,837.39 = 421,219.92/x
  3. Step 3: Cross multiply
    760,751.67x = 1,049,837.39 × 421,219.92
  4. Step 4: Simplify right side
    760,751.67x = 442,212,419,322.71
  5. Step 5: Solve for x
    x = 442,212,419,322.71/760,751.67
  6. Step 6: Final answer
    x = 581,283.53

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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.