Home / 757,928.21-1,136,323.62-458,347.41

Finding the Fourth Proportional to 757,928.21, 1,136,323.62 and 458,347.41

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Solution

The fourth proportional to 757,928.21, 1,136,323.62 and 458,347.41 is: 687,177.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,928.21 : 1,136,323.62 = 458,347.41 : x
  2. Step 2: Convert to fraction form
    757,928.21/1,136,323.62 = 458,347.41/x
  3. Step 3: Cross multiply
    757,928.21x = 1,136,323.62 × 458,347.41
  4. Step 4: Simplify right side
    757,928.21x = 520,830,988,148.82
  5. Step 5: Solve for x
    x = 520,830,988,148.82/757,928.21
  6. Step 6: Final answer
    x = 687,177.21

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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.