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Finding the Fourth Proportional to 519,477.19, 716,997.86 and 304,686.45

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Solution

The fourth proportional to 519,477.19, 716,997.86 and 304,686.45 is: 420,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,477.19 : 716,997.86 = 304,686.45 : x
  2. Step 2: Convert to fraction form
    519,477.19/716,997.86 = 304,686.45/x
  3. Step 3: Cross multiply
    519,477.19x = 716,997.86 × 304,686.45
  4. Step 4: Simplify right side
    519,477.19x = 218,459,532,240.14
  5. Step 5: Solve for x
    x = 218,459,532,240.14/519,477.19
  6. Step 6: Final answer
    x = 420,537.30

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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.