Home / 678,498.12-1,017,509.04-198,593.37

Finding the Fourth Proportional to 678,498.12, 1,017,509.04 and 198,593.37

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Solution

The fourth proportional to 678,498.12, 1,017,509.04 and 198,593.37 is: 297,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,498.12 : 1,017,509.04 = 198,593.37 : x
  2. Step 2: Convert to fraction form
    678,498.12/1,017,509.04 = 198,593.37/x
  3. Step 3: Cross multiply
    678,498.12x = 1,017,509.04 × 198,593.37
  4. Step 4: Simplify right side
    678,498.12x = 202,070,549,259.07
  5. Step 5: Solve for x
    x = 202,070,549,259.07/678,498.12
  6. Step 6: Final answer
    x = 297,820.35

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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.