Home / 740,630.91-1,022,153.78-418,361.77

Finding the Fourth Proportional to 740,630.91, 1,022,153.78 and 418,361.77

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Solution

The fourth proportional to 740,630.91, 1,022,153.78 and 418,361.77 is: 577,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,630.91 : 1,022,153.78 = 418,361.77 : x
  2. Step 2: Convert to fraction form
    740,630.91/1,022,153.78 = 418,361.77/x
  3. Step 3: Cross multiply
    740,630.91x = 1,022,153.78 × 418,361.77
  4. Step 4: Simplify right side
    740,630.91x = 427,630,065,804.48
  5. Step 5: Solve for x
    x = 427,630,065,804.48/740,630.91
  6. Step 6: Final answer
    x = 577,386.20

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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.