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Finding the Fourth Proportional to 522,692.50, 721,389.38 and 304,973.00

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Solution

The fourth proportional to 522,692.50, 721,389.38 and 304,973.00 is: 420,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,692.50 : 721,389.38 = 304,973.00 : x
  2. Step 2: Convert to fraction form
    522,692.50/721,389.38 = 304,973.00/x
  3. Step 3: Cross multiply
    522,692.50x = 721,389.38 × 304,973.00
  4. Step 4: Simplify right side
    522,692.50x = 220,004,283,665.35
  5. Step 5: Solve for x
    x = 220,004,283,665.35/522,692.50
  6. Step 6: Final answer
    x = 420,905.76

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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.