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Finding the Fourth Proportional to 484,577.40, 668,710.98 and 283,373.40

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Solution

The fourth proportional to 484,577.40, 668,710.98 and 283,373.40 is: 391,051.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,577.40 : 668,710.98 = 283,373.40 : x
  2. Step 2: Convert to fraction form
    484,577.40/668,710.98 = 283,373.40/x
  3. Step 3: Cross multiply
    484,577.40x = 668,710.98 × 283,373.40
  4. Step 4: Simplify right side
    484,577.40x = 189,494,904,019.93
  5. Step 5: Solve for x
    x = 189,494,904,019.93/484,577.40
  6. Step 6: Final answer
    x = 391,051.88

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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.