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Finding the Fourth Proportional to 509,237.77, 763,986.39 and 239,313.52

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Solution

The fourth proportional to 509,237.77, 763,986.39 and 239,313.52 is: 359,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,237.77 : 763,986.39 = 239,313.52 : x
  2. Step 2: Convert to fraction form
    509,237.77/763,986.39 = 239,313.52/x
  3. Step 3: Cross multiply
    509,237.77x = 763,986.39 × 239,313.52
  4. Step 4: Simplify right side
    509,237.77x = 182,832,272,222.99
  5. Step 5: Solve for x
    x = 182,832,272,222.99/509,237.77
  6. Step 6: Final answer
    x = 359,031.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.