Home / 1,370,281-2,055,617.52-423,724.72

Finding the Fourth Proportional to 1,370,281, 2,055,617.52 and 423,724.72

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Solution

The fourth proportional to 1,370,281, 2,055,617.52 and 423,724.72 is: 635,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,281 : 2,055,617.52 = 423,724.72 : x
  2. Step 2: Convert to fraction form
    1,370,281/2,055,617.52 = 423,724.72/x
  3. Step 3: Cross multiply
    1,370,281x = 2,055,617.52 × 423,724.72
  4. Step 4: Simplify right side
    1,370,281x = 871,015,958,089.09
  5. Step 5: Solve for x
    x = 871,015,958,089.09/1,370,281
  6. Step 6: Final answer
    x = 635,647.69

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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.