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Finding the Fourth Proportional to 539,898, 745,059.30 and 313,558.08

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Solution

The fourth proportional to 539,898, 745,059.30 and 313,558.08 is: 432,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,898 : 745,059.30 = 313,558.08 : x
  2. Step 2: Convert to fraction form
    539,898/745,059.30 = 313,558.08/x
  3. Step 3: Cross multiply
    539,898x = 745,059.30 × 313,558.08
  4. Step 4: Simplify right side
    539,898x = 233,619,363,594.14
  5. Step 5: Solve for x
    x = 233,619,363,594.14/539,898
  6. Step 6: Final answer
    x = 432,710.19

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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.