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Finding the Fourth Proportional to 802,275.60, 1,203,121.80 and 402,783.60

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Solution

The fourth proportional to 802,275.60, 1,203,121.80 and 402,783.60 is: 604,029.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,275.60 : 1,203,121.80 = 402,783.60 : x
  2. Step 2: Convert to fraction form
    802,275.60/1,203,121.80 = 402,783.60/x
  3. Step 3: Cross multiply
    802,275.60x = 1,203,121.80 × 402,783.60
  4. Step 4: Simplify right side
    802,275.60x = 484,597,729,842.48
  5. Step 5: Solve for x
    x = 484,597,729,842.48/802,275.60
  6. Step 6: Final answer
    x = 604,029.00

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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.