Home / 920,189.80-1,377,174.30-808,215.40

Finding the Fourth Proportional to 920,189.80, 1,377,174.30 and 808,215.40

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Solution

The fourth proportional to 920,189.80, 1,377,174.30 and 808,215.40 is: 1,209,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,189.80 : 1,377,174.30 = 808,215.40 : x
  2. Step 2: Convert to fraction form
    920,189.80/1,377,174.30 = 808,215.40/x
  3. Step 3: Cross multiply
    920,189.80x = 1,377,174.30 × 808,215.40
  4. Step 4: Simplify right side
    920,189.80x = 1,113,053,477,744.22
  5. Step 5: Solve for x
    x = 1,113,053,477,744.22/920,189.80
  6. Step 6: Final answer
    x = 1,209,591.19

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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.