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Finding the Fourth Proportional to 587,401.53, 810,598.35 and 345,698.34

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Solution

The fourth proportional to 587,401.53, 810,598.35 and 345,698.34 is: 477,054.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,401.53 : 810,598.35 = 345,698.34 : x
  2. Step 2: Convert to fraction form
    587,401.53/810,598.35 = 345,698.34/x
  3. Step 3: Cross multiply
    587,401.53x = 810,598.35 × 345,698.34
  4. Step 4: Simplify right side
    587,401.53x = 280,222,504,001.74
  5. Step 5: Solve for x
    x = 280,222,504,001.74/587,401.53
  6. Step 6: Final answer
    x = 477,054.43

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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.