Home / 528,525.12-729,365.16-302,175.36

Finding the Fourth Proportional to 528,525.12, 729,365.16 and 302,175.36

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Solution

The fourth proportional to 528,525.12, 729,365.16 and 302,175.36 is: 417,002.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,525.12 : 729,365.16 = 302,175.36 : x
  2. Step 2: Convert to fraction form
    528,525.12/729,365.16 = 302,175.36/x
  3. Step 3: Cross multiply
    528,525.12x = 729,365.16 × 302,175.36
  4. Step 4: Simplify right side
    528,525.12x = 220,396,179,794.46
  5. Step 5: Solve for x
    x = 220,396,179,794.46/528,525.12
  6. Step 6: Final answer
    x = 417,002.28

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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.