Home / 760,723.76-1,049,831.59-421,192

Finding the Fourth Proportional to 760,723.76, 1,049,831.59 and 421,192

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Solution

The fourth proportional to 760,723.76, 1,049,831.59 and 421,192 is: 581,263.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,723.76 : 1,049,831.59 = 421,192 : x
  2. Step 2: Convert to fraction form
    760,723.76/1,049,831.59 = 421,192/x
  3. Step 3: Cross multiply
    760,723.76x = 1,049,831.59 × 421,192
  4. Step 4: Simplify right side
    760,723.76x = 442,180,667,055.28
  5. Step 5: Solve for x
    x = 442,180,667,055.28/760,723.76
  6. Step 6: Final answer
    x = 581,263.12

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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.