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Finding the Fourth Proportional to 659,963.64, 910,763.46 and 373,483.65

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Solution

The fourth proportional to 659,963.64, 910,763.46 and 373,483.65 is: 515,415.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,963.64 : 910,763.46 = 373,483.65 : x
  2. Step 2: Convert to fraction form
    659,963.64/910,763.46 = 373,483.65/x
  3. Step 3: Cross multiply
    659,963.64x = 910,763.46 × 373,483.65
  4. Step 4: Simplify right side
    659,963.64x = 340,155,261,327.43
  5. Step 5: Solve for x
    x = 340,155,261,327.43/659,963.64
  6. Step 6: Final answer
    x = 515,415.15

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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.