Home / 420,002.40-579,603.60-229,016.16

Finding the Fourth Proportional to 420,002.40, 579,603.60 and 229,016.16

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Solution

The fourth proportional to 420,002.40, 579,603.60 and 229,016.16 is: 316,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,002.40 : 579,603.60 = 229,016.16 : x
  2. Step 2: Convert to fraction form
    420,002.40/579,603.60 = 229,016.16/x
  3. Step 3: Cross multiply
    420,002.40x = 579,603.60 × 229,016.16
  4. Step 4: Simplify right side
    420,002.40x = 132,738,590,794.18
  5. Step 5: Solve for x
    x = 132,738,590,794.18/420,002.40
  6. Step 6: Final answer
    x = 316,042.46

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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.