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Finding the Fourth Proportional to 659,800.50, 910,529.55 and 357,994.50

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Solution

The fourth proportional to 659,800.50, 910,529.55 and 357,994.50 is: 494,035.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,800.50 : 910,529.55 = 357,994.50 : x
  2. Step 2: Convert to fraction form
    659,800.50/910,529.55 = 357,994.50/x
  3. Step 3: Cross multiply
    659,800.50x = 910,529.55 × 357,994.50
  4. Step 4: Simplify right side
    659,800.50x = 325,964,570,987.48
  5. Step 5: Solve for x
    x = 325,964,570,987.48/659,800.50
  6. Step 6: Final answer
    x = 494,035.05

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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.