Home / 838,145.17-1,257,405.19-305,666.22

Finding the Fourth Proportional to 838,145.17, 1,257,405.19 and 305,666.22

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Solution

The fourth proportional to 838,145.17, 1,257,405.19 and 305,666.22 is: 458,567.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,145.17 : 1,257,405.19 = 305,666.22 : x
  2. Step 2: Convert to fraction form
    838,145.17/1,257,405.19 = 305,666.22/x
  3. Step 3: Cross multiply
    838,145.17x = 1,257,405.19 × 305,666.22
  4. Step 4: Simplify right side
    838,145.17x = 384,346,295,386.79
  5. Step 5: Solve for x
    x = 384,346,295,386.79/838,145.17
  6. Step 6: Final answer
    x = 458,567.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.