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Finding the Fourth Proportional to 631,701.54, 870,270.24 and 440,373.06

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Solution

The fourth proportional to 631,701.54, 870,270.24 and 440,373.06 is: 606,684.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,701.54 : 870,270.24 = 440,373.06 : x
  2. Step 2: Convert to fraction form
    631,701.54/870,270.24 = 440,373.06/x
  3. Step 3: Cross multiply
    631,701.54x = 870,270.24 × 440,373.06
  4. Step 4: Simplify right side
    631,701.54x = 383,243,568,615.73
  5. Step 5: Solve for x
    x = 383,243,568,615.73/631,701.54
  6. Step 6: Final answer
    x = 606,684.56

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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.