Home / 1,787,335.12-2,680,979.28-439,509.36

Finding the Fourth Proportional to 1,787,335.12, 2,680,979.28 and 439,509.36

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Solution

The fourth proportional to 1,787,335.12, 2,680,979.28 and 439,509.36 is: 659,258.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,335.12 : 2,680,979.28 = 439,509.36 : x
  2. Step 2: Convert to fraction form
    1,787,335.12/2,680,979.28 = 439,509.36/x
  3. Step 3: Cross multiply
    1,787,335.12x = 2,680,979.28 × 439,509.36
  4. Step 4: Simplify right side
    1,787,335.12x = 1,178,315,487,526.06
  5. Step 5: Solve for x
    x = 1,178,315,487,526.06/1,787,335.12
  6. Step 6: Final answer
    x = 659,258.29

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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.