Home / 869,113.70-1,303,670.55-629,612.90

Finding the Fourth Proportional to 869,113.70, 1,303,670.55 and 629,612.90

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Solution

The fourth proportional to 869,113.70, 1,303,670.55 and 629,612.90 is: 944,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,113.70 : 1,303,670.55 = 629,612.90 : x
  2. Step 2: Convert to fraction form
    869,113.70/1,303,670.55 = 629,612.90/x
  3. Step 3: Cross multiply
    869,113.70x = 1,303,670.55 × 629,612.90
  4. Step 4: Simplify right side
    869,113.70x = 820,807,795,630.10
  5. Step 5: Solve for x
    x = 820,807,795,630.10/869,113.70
  6. Step 6: Final answer
    x = 944,419.35

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Similar ratio
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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.