Home / 438,362.19-657,549.78-122,799.15

Finding the Fourth Proportional to 438,362.19, 657,549.78 and 122,799.15

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Solution

The fourth proportional to 438,362.19, 657,549.78 and 122,799.15 is: 184,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,362.19 : 657,549.78 = 122,799.15 : x
  2. Step 2: Convert to fraction form
    438,362.19/657,549.78 = 122,799.15/x
  3. Step 3: Cross multiply
    438,362.19x = 657,549.78 × 122,799.15
  4. Step 4: Simplify right side
    438,362.19x = 80,746,554,066.69
  5. Step 5: Solve for x
    x = 80,746,554,066.69/438,362.19
  6. Step 6: Final answer
    x = 184,200.54

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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.