Home / 727,145.24-1,003,421.98-417,031.81

Finding the Fourth Proportional to 727,145.24, 1,003,421.98 and 417,031.81

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Solution

The fourth proportional to 727,145.24, 1,003,421.98 and 417,031.81 is: 575,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,145.24 : 1,003,421.98 = 417,031.81 : x
  2. Step 2: Convert to fraction form
    727,145.24/1,003,421.98 = 417,031.81/x
  3. Step 3: Cross multiply
    727,145.24x = 1,003,421.98 × 417,031.81
  4. Step 4: Simplify right side
    727,145.24x = 418,458,884,513.18
  5. Step 5: Solve for x
    x = 418,458,884,513.18/727,145.24
  6. Step 6: Final answer
    x = 575,481.85

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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.