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Finding the Fourth Proportional to 564,275.64, 778,700.39 and 322,563.61

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Solution

The fourth proportional to 564,275.64, 778,700.39 and 322,563.61 is: 445,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,275.64 : 778,700.39 = 322,563.61 : x
  2. Step 2: Convert to fraction form
    564,275.64/778,700.39 = 322,563.61/x
  3. Step 3: Cross multiply
    564,275.64x = 778,700.39 × 322,563.61
  4. Step 4: Simplify right side
    564,275.64x = 251,180,408,906.81
  5. Step 5: Solve for x
    x = 251,180,408,906.81/564,275.64
  6. Step 6: Final answer
    x = 445,137.79

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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.