Home / 808,519.40-1,212,681.90-335,155.40

Finding the Fourth Proportional to 808,519.40, 1,212,681.90 and 335,155.40

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Solution

The fourth proportional to 808,519.40, 1,212,681.90 and 335,155.40 is: 502,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,519.40 : 1,212,681.90 = 335,155.40 : x
  2. Step 2: Convert to fraction form
    808,519.40/1,212,681.90 = 335,155.40/x
  3. Step 3: Cross multiply
    808,519.40x = 1,212,681.90 × 335,155.40
  4. Step 4: Simplify right side
    808,519.40x = 406,436,887,267.26
  5. Step 5: Solve for x
    x = 406,436,887,267.26/808,519.40
  6. Step 6: Final answer
    x = 502,692.81

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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.