Home / 727,207.32-1,090,445.97-423,699.72

Finding the Fourth Proportional to 727,207.32, 1,090,445.97 and 423,699.72

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Solution

The fourth proportional to 727,207.32, 1,090,445.97 and 423,699.72 is: 635,336.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,207.32 : 1,090,445.97 = 423,699.72 : x
  2. Step 2: Convert to fraction form
    727,207.32/1,090,445.97 = 423,699.72/x
  3. Step 3: Cross multiply
    727,207.32x = 1,090,445.97 × 423,699.72
  4. Step 4: Simplify right side
    727,207.32x = 462,021,652,164.13
  5. Step 5: Solve for x
    x = 462,021,652,164.13/727,207.32
  6. Step 6: Final answer
    x = 635,336.91

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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.