Home / 885,439.98-1,221,870.96-522,981.18

Finding the Fourth Proportional to 885,439.98, 1,221,870.96 and 522,981.18

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Solution

The fourth proportional to 885,439.98, 1,221,870.96 and 522,981.18 is: 721,692.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,439.98 : 1,221,870.96 = 522,981.18 : x
  2. Step 2: Convert to fraction form
    885,439.98/1,221,870.96 = 522,981.18/x
  3. Step 3: Cross multiply
    885,439.98x = 1,221,870.96 × 522,981.18
  4. Step 4: Simplify right side
    885,439.98x = 639,015,516,468.53
  5. Step 5: Solve for x
    x = 639,015,516,468.53/885,439.98
  6. Step 6: Final answer
    x = 721,692.64

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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.