Home / 760,821.97-1,049,921.46-421,282.93

Finding the Fourth Proportional to 760,821.97, 1,049,921.46 and 421,282.93

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Solution

The fourth proportional to 760,821.97, 1,049,921.46 and 421,282.93 is: 581,363.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,821.97 : 1,049,921.46 = 421,282.93 : x
  2. Step 2: Convert to fraction form
    760,821.97/1,049,921.46 = 421,282.93/x
  3. Step 3: Cross multiply
    760,821.97x = 1,049,921.46 × 421,282.93
  4. Step 4: Simplify right side
    760,821.97x = 442,313,988,938.68
  5. Step 5: Solve for x
    x = 442,313,988,938.68/760,821.97
  6. Step 6: Final answer
    x = 581,363.32

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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.