Home / 694,533.60-1,039,726.80-413,906.40

Finding the Fourth Proportional to 694,533.60, 1,039,726.80 and 413,906.40

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Solution

The fourth proportional to 694,533.60, 1,039,726.80 and 413,906.40 is: 619,623.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,533.60 : 1,039,726.80 = 413,906.40 : x
  2. Step 2: Convert to fraction form
    694,533.60/1,039,726.80 = 413,906.40/x
  3. Step 3: Cross multiply
    694,533.60x = 1,039,726.80 × 413,906.40
  4. Step 4: Simplify right side
    694,533.60x = 430,349,576,771.52
  5. Step 5: Solve for x
    x = 430,349,576,771.52/694,533.60
  6. Step 6: Final answer
    x = 619,623.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.