Home / 993,185.56-1,489,634.95-319,178.89

Finding the Fourth Proportional to 993,185.56, 1,489,634.95 and 319,178.89

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Solution

The fourth proportional to 993,185.56, 1,489,634.95 and 319,178.89 is: 478,722.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,185.56 : 1,489,634.95 = 319,178.89 : x
  2. Step 2: Convert to fraction form
    993,185.56/1,489,634.95 = 319,178.89/x
  3. Step 3: Cross multiply
    993,185.56x = 1,489,634.95 × 319,178.89
  4. Step 4: Simplify right side
    993,185.56x = 475,460,029,846.21
  5. Step 5: Solve for x
    x = 475,460,029,846.21/993,185.56
  6. Step 6: Final answer
    x = 478,722.25

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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.