Home / 920,605.75-1,380,925.91-255,775.03

Finding the Fourth Proportional to 920,605.75, 1,380,925.91 and 255,775.03

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Solution

The fourth proportional to 920,605.75, 1,380,925.91 and 255,775.03 is: 383,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,605.75 : 1,380,925.91 = 255,775.03 : x
  2. Step 2: Convert to fraction form
    920,605.75/1,380,925.91 = 255,775.03/x
  3. Step 3: Cross multiply
    920,605.75x = 1,380,925.91 × 255,775.03
  4. Step 4: Simplify right side
    920,605.75x = 353,206,366,058.03
  5. Step 5: Solve for x
    x = 353,206,366,058.03/920,605.75
  6. Step 6: Final answer
    x = 383,667.35

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1.5x scale

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.