Home / 790,762.89-1,091,251.20-428,185.62

Finding the Fourth Proportional to 790,762.89, 1,091,251.20 and 428,185.62

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Solution

The fourth proportional to 790,762.89, 1,091,251.20 and 428,185.62 is: 590,895.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,762.89 : 1,091,251.20 = 428,185.62 : x
  2. Step 2: Convert to fraction form
    790,762.89/1,091,251.20 = 428,185.62/x
  3. Step 3: Cross multiply
    790,762.89x = 1,091,251.20 × 428,185.62
  4. Step 4: Simplify right side
    790,762.89x = 467,258,071,647.74
  5. Step 5: Solve for x
    x = 467,258,071,647.74/790,762.89
  6. Step 6: Final answer
    x = 590,895.30

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1.5x scale

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.