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Finding the Fourth Proportional to 485,597.44, 670,070.40 and 294,657.28

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Solution

The fourth proportional to 485,597.44, 670,070.40 and 294,657.28 is: 406,594.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,597.44 : 670,070.40 = 294,657.28 : x
  2. Step 2: Convert to fraction form
    485,597.44/670,070.40 = 294,657.28/x
  3. Step 3: Cross multiply
    485,597.44x = 670,070.40 × 294,657.28
  4. Step 4: Simplify right side
    485,597.44x = 197,441,121,472.51
  5. Step 5: Solve for x
    x = 197,441,121,472.51/485,597.44
  6. Step 6: Final answer
    x = 406,594.24

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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.