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Finding the Fourth Proportional to 545,907.90, 753,342.73 and 304,185.34

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Solution

The fourth proportional to 545,907.90, 753,342.73 and 304,185.34 is: 419,770.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,907.90 : 753,342.73 = 304,185.34 : x
  2. Step 2: Convert to fraction form
    545,907.90/753,342.73 = 304,185.34/x
  3. Step 3: Cross multiply
    545,907.90x = 753,342.73 × 304,185.34
  4. Step 4: Simplify right side
    545,907.90x = 229,155,814,642.79
  5. Step 5: Solve for x
    x = 229,155,814,642.79/545,907.90
  6. Step 6: Final answer
    x = 419,770.10

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1.5x scale

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.