Home / 843,156.72-1,264,751.55-310,403.52

Finding the Fourth Proportional to 843,156.72, 1,264,751.55 and 310,403.52

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Solution

The fourth proportional to 843,156.72, 1,264,751.55 and 310,403.52 is: 465,611.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,156.72 : 1,264,751.55 = 310,403.52 : x
  2. Step 2: Convert to fraction form
    843,156.72/1,264,751.55 = 310,403.52/x
  3. Step 3: Cross multiply
    843,156.72x = 1,264,751.55 × 310,403.52
  4. Step 4: Simplify right side
    843,156.72x = 392,583,333,045.46
  5. Step 5: Solve for x
    x = 392,583,333,045.46/843,156.72
  6. Step 6: Final answer
    x = 465,611.34

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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.