Home / 760,807.82-1,049,901.97-421,268.78

Finding the Fourth Proportional to 760,807.82, 1,049,901.97 and 421,268.78

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Solution

The fourth proportional to 760,807.82, 1,049,901.97 and 421,268.78 is: 581,343.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,807.82 : 1,049,901.97 = 421,268.78 : x
  2. Step 2: Convert to fraction form
    760,807.82/1,049,901.97 = 421,268.78/x
  3. Step 3: Cross multiply
    760,807.82x = 1,049,901.97 × 421,268.78
  4. Step 4: Simplify right side
    760,807.82x = 442,290,922,021.50
  5. Step 5: Solve for x
    x = 442,290,922,021.50/760,807.82
  6. Step 6: Final answer
    x = 581,343.82

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1.5x scale

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.