Home / 722,316.20-1,083,647.10-348,031.40

Finding the Fourth Proportional to 722,316.20, 1,083,647.10 and 348,031.40

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Solution

The fourth proportional to 722,316.20, 1,083,647.10 and 348,031.40 is: 522,130.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,316.20 : 1,083,647.10 = 348,031.40 : x
  2. Step 2: Convert to fraction form
    722,316.20/1,083,647.10 = 348,031.40/x
  3. Step 3: Cross multiply
    722,316.20x = 1,083,647.10 × 348,031.40
  4. Step 4: Simplify right side
    722,316.20x = 377,143,217,318.94
  5. Step 5: Solve for x
    x = 377,143,217,318.94/722,316.20
  6. Step 6: Final answer
    x = 522,130.36

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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.