Home / 679,776.87-1,018,965.45-364,149.03

Finding the Fourth Proportional to 679,776.87, 1,018,965.45 and 364,149.03

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Solution

The fourth proportional to 679,776.87, 1,018,965.45 and 364,149.03 is: 545,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,776.87 : 1,018,965.45 = 364,149.03 : x
  2. Step 2: Convert to fraction form
    679,776.87/1,018,965.45 = 364,149.03/x
  3. Step 3: Cross multiply
    679,776.87x = 1,018,965.45 × 364,149.03
  4. Step 4: Simplify right side
    679,776.87x = 371,055,280,221.01
  5. Step 5: Solve for x
    x = 371,055,280,221.01/679,776.87
  6. Step 6: Final answer
    x = 545,848.64

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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.