Home / 474,112.78-654,261.02-290,421.18

Finding the Fourth Proportional to 474,112.78, 654,261.02 and 290,421.18

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Solution

The fourth proportional to 474,112.78, 654,261.02 and 290,421.18 is: 400,772.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,112.78 : 654,261.02 = 290,421.18 : x
  2. Step 2: Convert to fraction form
    474,112.78/654,261.02 = 290,421.18/x
  3. Step 3: Cross multiply
    474,112.78x = 654,261.02 × 290,421.18
  4. Step 4: Simplify right side
    474,112.78x = 190,011,260,670.35
  5. Step 5: Solve for x
    x = 190,011,260,670.35/474,112.78
  6. Step 6: Final answer
    x = 400,772.28

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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.