Home / 669,695.85-1,003,796.55-290,178.45

Finding the Fourth Proportional to 669,695.85, 1,003,796.55 and 290,178.45

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Solution

The fourth proportional to 669,695.85, 1,003,796.55 and 290,178.45 is: 434,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,695.85 : 1,003,796.55 = 290,178.45 : x
  2. Step 2: Convert to fraction form
    669,695.85/1,003,796.55 = 290,178.45/x
  3. Step 3: Cross multiply
    669,695.85x = 1,003,796.55 × 290,178.45
  4. Step 4: Simplify right side
    669,695.85x = 291,280,126,994.35
  5. Step 5: Solve for x
    x = 291,280,126,994.35/669,695.85
  6. Step 6: Final answer
    x = 434,943.90

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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.