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Finding the Fourth Proportional to 545,907.81, 753,345.12 and 304,200.57

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Solution

The fourth proportional to 545,907.81, 753,345.12 and 304,200.57 is: 419,792.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,907.81 : 753,345.12 = 304,200.57 : x
  2. Step 2: Convert to fraction form
    545,907.81/753,345.12 = 304,200.57/x
  3. Step 3: Cross multiply
    545,907.81x = 753,345.12 × 304,200.57
  4. Step 4: Simplify right side
    545,907.81x = 229,168,014,910.72
  5. Step 5: Solve for x
    x = 229,168,014,910.72/545,907.81
  6. Step 6: Final answer
    x = 419,792.52

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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.