Home / 528,162.48-727,912.44-384,695.28

Finding the Fourth Proportional to 528,162.48, 727,912.44 and 384,695.28

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Solution

The fourth proportional to 528,162.48, 727,912.44 and 384,695.28 is: 530,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,162.48 : 727,912.44 = 384,695.28 : x
  2. Step 2: Convert to fraction form
    528,162.48/727,912.44 = 384,695.28/x
  3. Step 3: Cross multiply
    528,162.48x = 727,912.44 × 384,695.28
  4. Step 4: Simplify right side
    528,162.48x = 280,024,479,921.28
  5. Step 5: Solve for x
    x = 280,024,479,921.28/528,162.48
  6. Step 6: Final answer
    x = 530,186.24

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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.