Home / 771,464.30-1,157,381.22-321,935.10

Finding the Fourth Proportional to 771,464.30, 1,157,381.22 and 321,935.10

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Solution

The fourth proportional to 771,464.30, 1,157,381.22 and 321,935.10 is: 482,979.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,464.30 : 1,157,381.22 = 321,935.10 : x
  2. Step 2: Convert to fraction form
    771,464.30/1,157,381.22 = 321,935.10/x
  3. Step 3: Cross multiply
    771,464.30x = 1,157,381.22 × 321,935.10
  4. Step 4: Simplify right side
    771,464.30x = 372,601,638,798.82
  5. Step 5: Solve for x
    x = 372,601,638,798.82/771,464.30
  6. Step 6: Final answer
    x = 482,979.76

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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.