Home / 859,039.93-1,288,840.15-409,702.41

Finding the Fourth Proportional to 859,039.93, 1,288,840.15 and 409,702.41

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Solution

The fourth proportional to 859,039.93, 1,288,840.15 and 409,702.41 is: 614,687.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,039.93 : 1,288,840.15 = 409,702.41 : x
  2. Step 2: Convert to fraction form
    859,039.93/1,288,840.15 = 409,702.41/x
  3. Step 3: Cross multiply
    859,039.93x = 1,288,840.15 × 409,702.41
  4. Step 4: Simplify right side
    859,039.93x = 528,040,920,119.88
  5. Step 5: Solve for x
    x = 528,040,920,119.88/859,039.93
  6. Step 6: Final answer
    x = 614,687.28

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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.