Home / 727,161.30-1,003,473.03-421,279.38

Finding the Fourth Proportional to 727,161.30, 1,003,473.03 and 421,279.38

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Solution

The fourth proportional to 727,161.30, 1,003,473.03 and 421,279.38 is: 581,360.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,161.30 : 1,003,473.03 = 421,279.38 : x
  2. Step 2: Convert to fraction form
    727,161.30/1,003,473.03 = 421,279.38/x
  3. Step 3: Cross multiply
    727,161.30x = 1,003,473.03 × 421,279.38
  4. Step 4: Simplify right side
    727,161.30x = 422,742,495,925.12
  5. Step 5: Solve for x
    x = 422,742,495,925.12/727,161.30
  6. Step 6: Final answer
    x = 581,360.00

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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.