Home / 727,091.04-1,003,125.96-421,000.37

Finding the Fourth Proportional to 727,091.04, 1,003,125.96 and 421,000.37

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Solution

The fourth proportional to 727,091.04, 1,003,125.96 and 421,000.37 is: 580,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,091.04 : 1,003,125.96 = 421,000.37 : x
  2. Step 2: Convert to fraction form
    727,091.04/1,003,125.96 = 421,000.37/x
  3. Step 3: Cross multiply
    727,091.04x = 1,003,125.96 × 421,000.37
  4. Step 4: Simplify right side
    727,091.04x = 422,316,400,316.61
  5. Step 5: Solve for x
    x = 422,316,400,316.61/727,091.04
  6. Step 6: Final answer
    x = 580,830.15

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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.