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Finding the Fourth Proportional to 520,033.64, 779,515.25 and 253,464.39

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Solution

The fourth proportional to 520,033.64, 779,515.25 and 253,464.39 is: 379,935.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,033.64 : 779,515.25 = 253,464.39 : x
  2. Step 2: Convert to fraction form
    520,033.64/779,515.25 = 253,464.39/x
  3. Step 3: Cross multiply
    520,033.64x = 779,515.25 × 253,464.39
  4. Step 4: Simplify right side
    520,033.64x = 197,579,356,069.63
  5. Step 5: Solve for x
    x = 197,579,356,069.63/520,033.64
  6. Step 6: Final answer
    x = 379,935.72

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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.