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Finding the Fourth Proportional to 419,007.81, 578,293.04 and 246,870.75

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Solution

The fourth proportional to 419,007.81, 578,293.04 and 246,870.75 is: 340,718.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,007.81 : 578,293.04 = 246,870.75 : x
  2. Step 2: Convert to fraction form
    419,007.81/578,293.04 = 246,870.75/x
  3. Step 3: Cross multiply
    419,007.81x = 578,293.04 × 246,870.75
  4. Step 4: Simplify right side
    419,007.81x = 142,763,635,270.23
  5. Step 5: Solve for x
    x = 142,763,635,270.23/419,007.81
  6. Step 6: Final answer
    x = 340,718.32

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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.