Home / 839,645.28-1,258,341.48-459,993.06

Finding the Fourth Proportional to 839,645.28, 1,258,341.48 and 459,993.06

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Solution

The fourth proportional to 839,645.28, 1,258,341.48 and 459,993.06 is: 689,372.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,645.28 : 1,258,341.48 = 459,993.06 : x
  2. Step 2: Convert to fraction form
    839,645.28/1,258,341.48 = 459,993.06/x
  3. Step 3: Cross multiply
    839,645.28x = 1,258,341.48 × 459,993.06
  4. Step 4: Simplify right side
    839,645.28x = 578,828,347,910.13
  5. Step 5: Solve for x
    x = 578,828,347,910.13/839,645.28
  6. Step 6: Final answer
    x = 689,372.48

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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.