Home / 420,016.60-579,365.22-268,851.16

Finding the Fourth Proportional to 420,016.60, 579,365.22 and 268,851.16

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Solution

The fourth proportional to 420,016.60, 579,365.22 and 268,851.16 is: 370,849.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,016.60 : 579,365.22 = 268,851.16 : x
  2. Step 2: Convert to fraction form
    420,016.60/579,365.22 = 268,851.16/x
  3. Step 3: Cross multiply
    420,016.60x = 579,365.22 × 268,851.16
  4. Step 4: Simplify right side
    420,016.60x = 155,763,011,460.66
  5. Step 5: Solve for x
    x = 155,763,011,460.66/420,016.60
  6. Step 6: Final answer
    x = 370,849.66

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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.