Home / 1,136,085.20-1,703,479.80-426,136.40

Finding the Fourth Proportional to 1,136,085.20, 1,703,479.80 and 426,136.40

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Solution

The fourth proportional to 1,136,085.20, 1,703,479.80 and 426,136.40 is: 638,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,085.20 : 1,703,479.80 = 426,136.40 : x
  2. Step 2: Convert to fraction form
    1,136,085.20/1,703,479.80 = 426,136.40/x
  3. Step 3: Cross multiply
    1,136,085.20x = 1,703,479.80 × 426,136.40
  4. Step 4: Simplify right side
    1,136,085.20x = 725,914,749,444.72
  5. Step 5: Solve for x
    x = 725,914,749,444.72/1,136,085.20
  6. Step 6: Final answer
    x = 638,961.54

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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.