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Finding the Fourth Proportional to 631,007.36, 870,687.45 and 372,848.41

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Solution

The fourth proportional to 631,007.36, 870,687.45 and 372,848.41 is: 514,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,007.36 : 870,687.45 = 372,848.41 : x
  2. Step 2: Convert to fraction form
    631,007.36/870,687.45 = 372,848.41/x
  3. Step 3: Cross multiply
    631,007.36x = 870,687.45 × 372,848.41
  4. Step 4: Simplify right side
    631,007.36x = 324,634,431,339.45
  5. Step 5: Solve for x
    x = 324,634,431,339.45/631,007.36
  6. Step 6: Final answer
    x = 514,470.12

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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.