Home / 743,389.46-1,025,898.49-421,099.47

Finding the Fourth Proportional to 743,389.46, 1,025,898.49 and 421,099.47

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Solution

The fourth proportional to 743,389.46, 1,025,898.49 and 421,099.47 is: 581,129.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,389.46 : 1,025,898.49 = 421,099.47 : x
  2. Step 2: Convert to fraction form
    743,389.46/1,025,898.49 = 421,099.47/x
  3. Step 3: Cross multiply
    743,389.46x = 1,025,898.49 × 421,099.47
  4. Step 4: Simplify right side
    743,389.46x = 432,005,310,412.80
  5. Step 5: Solve for x
    x = 432,005,310,412.80/743,389.46
  6. Step 6: Final answer
    x = 581,129.18

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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.