Home / 694,173.42-1,041,390.48-315,120.77

Finding the Fourth Proportional to 694,173.42, 1,041,390.48 and 315,120.77

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Solution

The fourth proportional to 694,173.42, 1,041,390.48 and 315,120.77 is: 472,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,173.42 : 1,041,390.48 = 315,120.77 : x
  2. Step 2: Convert to fraction form
    694,173.42/1,041,390.48 = 315,120.77/x
  3. Step 3: Cross multiply
    694,173.42x = 1,041,390.48 × 315,120.77
  4. Step 4: Simplify right side
    694,173.42x = 328,163,764,721.32
  5. Step 5: Solve for x
    x = 328,163,764,721.32/694,173.42
  6. Step 6: Final answer
    x = 472,740.32

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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.