Home / 401,760.48-602,645.04-121,280.16

Finding the Fourth Proportional to 401,760.48, 602,645.04 and 121,280.16

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Solution

The fourth proportional to 401,760.48, 602,645.04 and 121,280.16 is: 181,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,760.48 : 602,645.04 = 121,280.16 : x
  2. Step 2: Convert to fraction form
    401,760.48/602,645.04 = 121,280.16/x
  3. Step 3: Cross multiply
    401,760.48x = 602,645.04 × 121,280.16
  4. Step 4: Simplify right side
    401,760.48x = 73,088,886,874.41
  5. Step 5: Solve for x
    x = 73,088,886,874.41/401,760.48
  6. Step 6: Final answer
    x = 181,921.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.