Home / 528,520.12-729,358.26-302,170.36

Finding the Fourth Proportional to 528,520.12, 729,358.26 and 302,170.36

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Solution

The fourth proportional to 528,520.12, 729,358.26 and 302,170.36 is: 416,995.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,520.12 : 729,358.26 = 302,170.36 : x
  2. Step 2: Convert to fraction form
    528,520.12/729,358.26 = 302,170.36/x
  3. Step 3: Cross multiply
    528,520.12x = 729,358.26 × 302,170.36
  4. Step 4: Simplify right side
    528,520.12x = 220,390,447,993.17
  5. Step 5: Solve for x
    x = 220,390,447,993.17/528,520.12
  6. Step 6: Final answer
    x = 416,995.38

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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.