Home / 526,398-789,679.08-171,328.20

Finding the Fourth Proportional to 526,398, 789,679.08 and 171,328.20

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Solution

The fourth proportional to 526,398, 789,679.08 and 171,328.20 is: 257,019.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,398 : 789,679.08 = 171,328.20 : x
  2. Step 2: Convert to fraction form
    526,398/789,679.08 = 171,328.20/x
  3. Step 3: Cross multiply
    526,398x = 789,679.08 × 171,328.20
  4. Step 4: Simplify right side
    526,398x = 135,294,295,354.06
  5. Step 5: Solve for x
    x = 135,294,295,354.06/526,398
  6. Step 6: Final answer
    x = 257,019.01

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1.5x scale

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.