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Finding the Fourth Proportional to 349,480.40, 524,220.60 and 343,648.40

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Solution

The fourth proportional to 349,480.40, 524,220.60 and 343,648.40 is: 515,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,480.40 : 524,220.60 = 343,648.40 : x
  2. Step 2: Convert to fraction form
    349,480.40/524,220.60 = 343,648.40/x
  3. Step 3: Cross multiply
    349,480.40x = 524,220.60 × 343,648.40
  4. Step 4: Simplify right side
    349,480.40x = 180,147,570,437.04
  5. Step 5: Solve for x
    x = 180,147,570,437.04/349,480.40
  6. Step 6: Final answer
    x = 515,472.60

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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.