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Finding the Fourth Proportional to 615,987.34, 850,053.50 and 344,059.18

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Solution

The fourth proportional to 615,987.34, 850,053.50 and 344,059.18 is: 474,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,987.34 : 850,053.50 = 344,059.18 : x
  2. Step 2: Convert to fraction form
    615,987.34/850,053.50 = 344,059.18/x
  3. Step 3: Cross multiply
    615,987.34x = 850,053.50 × 344,059.18
  4. Step 4: Simplify right side
    615,987.34x = 292,468,714,327.81
  5. Step 5: Solve for x
    x = 292,468,714,327.81/615,987.34
  6. Step 6: Final answer
    x = 474,796.63

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1.5x scale

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.