Home / 527,180.70-727,509.75-285,465.18

Finding the Fourth Proportional to 527,180.70, 727,509.75 and 285,465.18

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Solution

The fourth proportional to 527,180.70, 727,509.75 and 285,465.18 is: 393,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,180.70 : 727,509.75 = 285,465.18 : x
  2. Step 2: Convert to fraction form
    527,180.70/727,509.75 = 285,465.18/x
  3. Step 3: Cross multiply
    527,180.70x = 727,509.75 × 285,465.18
  4. Step 4: Simplify right side
    527,180.70x = 207,678,701,735.51
  5. Step 5: Solve for x
    x = 207,678,701,735.51/527,180.70
  6. Step 6: Final answer
    x = 393,942.16

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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.