Home / 420,904.98-581,040.08-268,152.64

Finding the Fourth Proportional to 420,904.98, 581,040.08 and 268,152.64

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Solution

The fourth proportional to 420,904.98, 581,040.08 and 268,152.64 is: 370,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,904.98 : 581,040.08 = 268,152.64 : x
  2. Step 2: Convert to fraction form
    420,904.98/581,040.08 = 268,152.64/x
  3. Step 3: Cross multiply
    420,904.98x = 581,040.08 × 268,152.64
  4. Step 4: Simplify right side
    420,904.98x = 155,807,431,397.81
  5. Step 5: Solve for x
    x = 155,807,431,397.81/420,904.98
  6. Step 6: Final answer
    x = 370,172.46

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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.