Home / 721,889.07-1,083,898.10-402,664.65

Finding the Fourth Proportional to 721,889.07, 1,083,898.10 and 402,664.65

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Solution

The fourth proportional to 721,889.07, 1,083,898.10 and 402,664.65 is: 604,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,889.07 : 1,083,898.10 = 402,664.65 : x
  2. Step 2: Convert to fraction form
    721,889.07/1,083,898.10 = 402,664.65/x
  3. Step 3: Cross multiply
    721,889.07x = 1,083,898.10 × 402,664.65
  4. Step 4: Simplify right side
    721,889.07x = 436,447,447,058.84
  5. Step 5: Solve for x
    x = 436,447,447,058.84/721,889.07
  6. Step 6: Final answer
    x = 604,590.74

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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.