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Finding the Fourth Proportional to 545,749.12, 753,168 and 304,028.16

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Solution

The fourth proportional to 545,749.12, 753,168 and 304,028.16 is: 419,577.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,749.12 : 753,168 = 304,028.16 : x
  2. Step 2: Convert to fraction form
    545,749.12/753,168 = 304,028.16/x
  3. Step 3: Cross multiply
    545,749.12x = 753,168 × 304,028.16
  4. Step 4: Simplify right side
    545,749.12x = 228,984,281,210.88
  5. Step 5: Solve for x
    x = 228,984,281,210.88/545,749.12
  6. Step 6: Final answer
    x = 419,577.92

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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.