Home / 920,388.12-1,270,193.30-506,924.82

Finding the Fourth Proportional to 920,388.12, 1,270,193.30 and 506,924.82

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Solution

The fourth proportional to 920,388.12, 1,270,193.30 and 506,924.82 is: 699,588.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,388.12 : 1,270,193.30 = 506,924.82 : x
  2. Step 2: Convert to fraction form
    920,388.12/1,270,193.30 = 506,924.82/x
  3. Step 3: Cross multiply
    920,388.12x = 1,270,193.30 × 506,924.82
  4. Step 4: Simplify right side
    920,388.12x = 643,892,507,433.08
  5. Step 5: Solve for x
    x = 643,892,507,433.08/920,388.12
  6. Step 6: Final answer
    x = 699,588.03

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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.