Home / 727,360.74-1,003,685.93-405,100.83

Finding the Fourth Proportional to 727,360.74, 1,003,685.93 and 405,100.83

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Solution

The fourth proportional to 727,360.74, 1,003,685.93 and 405,100.83 is: 558,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,360.74 : 1,003,685.93 = 405,100.83 : x
  2. Step 2: Convert to fraction form
    727,360.74/1,003,685.93 = 405,100.83/x
  3. Step 3: Cross multiply
    727,360.74x = 1,003,685.93 × 405,100.83
  4. Step 4: Simplify right side
    727,360.74x = 406,594,001,276.82
  5. Step 5: Solve for x
    x = 406,594,001,276.82/727,360.74
  6. Step 6: Final answer
    x = 558,999.10

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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.