Home / 760,208.76-1,049,097.42-420,708.60

Finding the Fourth Proportional to 760,208.76, 1,049,097.42 and 420,708.60

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Solution

The fourth proportional to 760,208.76, 1,049,097.42 and 420,708.60 is: 580,583.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,208.76 : 1,049,097.42 = 420,708.60 : x
  2. Step 2: Convert to fraction form
    760,208.76/1,049,097.42 = 420,708.60/x
  3. Step 3: Cross multiply
    760,208.76x = 1,049,097.42 × 420,708.60
  4. Step 4: Simplify right side
    760,208.76x = 441,364,306,831.81
  5. Step 5: Solve for x
    x = 441,364,306,831.81/760,208.76
  6. Step 6: Final answer
    x = 580,583.03

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Double scale
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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.