Home / 464,220.61-640,738.41-283,032.45

Finding the Fourth Proportional to 464,220.61, 640,738.41 and 283,032.45

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Solution

The fourth proportional to 464,220.61, 640,738.41 and 283,032.45 is: 390,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,220.61 : 640,738.41 = 283,032.45 : x
  2. Step 2: Convert to fraction form
    464,220.61/640,738.41 = 283,032.45/x
  3. Step 3: Cross multiply
    464,220.61x = 640,738.41 × 283,032.45
  4. Step 4: Simplify right side
    464,220.61x = 181,349,760,576.24
  5. Step 5: Solve for x
    x = 181,349,760,576.24/464,220.61
  6. Step 6: Final answer
    x = 390,654.26

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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.