Home / 790,905.96-1,186,113.24-285,401.34

Finding the Fourth Proportional to 790,905.96, 1,186,113.24 and 285,401.34

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Solution

The fourth proportional to 790,905.96, 1,186,113.24 and 285,401.34 is: 428,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,905.96 : 1,186,113.24 = 285,401.34 : x
  2. Step 2: Convert to fraction form
    790,905.96/1,186,113.24 = 285,401.34/x
  3. Step 3: Cross multiply
    790,905.96x = 1,186,113.24 × 285,401.34
  4. Step 4: Simplify right side
    790,905.96x = 338,518,308,087.74
  5. Step 5: Solve for x
    x = 338,518,308,087.74/790,905.96
  6. Step 6: Final answer
    x = 428,013.35

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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.