Home / 920,735.30-1,270,678.61-558,174.44

Finding the Fourth Proportional to 920,735.30, 1,270,678.61 and 558,174.44

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Solution

The fourth proportional to 920,735.30, 1,270,678.61 and 558,174.44 is: 770,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,735.30 : 1,270,678.61 = 558,174.44 : x
  2. Step 2: Convert to fraction form
    920,735.30/1,270,678.61 = 558,174.44/x
  3. Step 3: Cross multiply
    920,735.30x = 1,270,678.61 × 558,174.44
  4. Step 4: Simplify right side
    920,735.30x = 709,260,312,412.46
  5. Step 5: Solve for x
    x = 709,260,312,412.46/920,735.30
  6. Step 6: Final answer
    x = 770,319.46

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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.