Home / 662,143.23-913,758.93-375,607.89

Finding the Fourth Proportional to 662,143.23, 913,758.93 and 375,607.89

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Solution

The fourth proportional to 662,143.23, 913,758.93 and 375,607.89 is: 518,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,143.23 : 913,758.93 = 375,607.89 : x
  2. Step 2: Convert to fraction form
    662,143.23/913,758.93 = 375,607.89/x
  3. Step 3: Cross multiply
    662,143.23x = 913,758.93 × 375,607.89
  4. Step 4: Simplify right side
    662,143.23x = 343,215,063,665.96
  5. Step 5: Solve for x
    x = 343,215,063,665.96/662,143.23
  6. Step 6: Final answer
    x = 518,339.61

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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.