Home / 438,247.47-657,579.39-303,518.88

Finding the Fourth Proportional to 438,247.47, 657,579.39 and 303,518.88

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Solution

The fourth proportional to 438,247.47, 657,579.39 and 303,518.88 is: 455,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,247.47 : 657,579.39 = 303,518.88 : x
  2. Step 2: Convert to fraction form
    438,247.47/657,579.39 = 303,518.88/x
  3. Step 3: Cross multiply
    438,247.47x = 657,579.39 × 303,518.88
  4. Step 4: Simplify right side
    438,247.47x = 199,587,759,963.88
  5. Step 5: Solve for x
    x = 199,587,759,963.88/438,247.47
  6. Step 6: Final answer
    x = 455,422.50

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1.5x scale

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.