Home / 679,839.54-938,158.80-373,914.72

Finding the Fourth Proportional to 679,839.54, 938,158.80 and 373,914.72

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Solution

The fourth proportional to 679,839.54, 938,158.80 and 373,914.72 is: 515,991.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,839.54 : 938,158.80 = 373,914.72 : x
  2. Step 2: Convert to fraction form
    679,839.54/938,158.80 = 373,914.72/x
  3. Step 3: Cross multiply
    679,839.54x = 938,158.80 × 373,914.72
  4. Step 4: Simplify right side
    679,839.54x = 350,791,385,017.54
  5. Step 5: Solve for x
    x = 350,791,385,017.54/679,839.54
  6. Step 6: Final answer
    x = 515,991.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.