Home / 727,217.15-1,003,605.26-400,530.10

Finding the Fourth Proportional to 727,217.15, 1,003,605.26 and 400,530.10

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Solution

The fourth proportional to 727,217.15, 1,003,605.26 and 400,530.10 is: 552,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,217.15 : 1,003,605.26 = 400,530.10 : x
  2. Step 2: Convert to fraction form
    727,217.15/1,003,605.26 = 400,530.10/x
  3. Step 3: Cross multiply
    727,217.15x = 1,003,605.26 × 400,530.10
  4. Step 4: Simplify right side
    727,217.15x = 401,974,108,127.65
  5. Step 5: Solve for x
    x = 401,974,108,127.65/727,217.15
  6. Step 6: Final answer
    x = 552,756.64

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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.