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Finding the Fourth Proportional to 528,760.48, 729,612.44 and 302,362.24

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Solution

The fourth proportional to 528,760.48, 729,612.44 and 302,362.24 is: 417,215.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,760.48 : 729,612.44 = 302,362.24 : x
  2. Step 2: Convert to fraction form
    528,760.48/729,612.44 = 302,362.24/x
  3. Step 3: Cross multiply
    528,760.48x = 729,612.44 × 302,362.24
  4. Step 4: Simplify right side
    528,760.48x = 220,607,251,690.27
  5. Step 5: Solve for x
    x = 220,607,251,690.27/528,760.48
  6. Step 6: Final answer
    x = 417,215.85

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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.