Home / 805,310.63-1,111,300.34-442,731.86

Finding the Fourth Proportional to 805,310.63, 1,111,300.34 and 442,731.86

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Solution

The fourth proportional to 805,310.63, 1,111,300.34 and 442,731.86 is: 610,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,310.63 : 1,111,300.34 = 442,731.86 : x
  2. Step 2: Convert to fraction form
    805,310.63/1,111,300.34 = 442,731.86/x
  3. Step 3: Cross multiply
    805,310.63x = 1,111,300.34 × 442,731.86
  4. Step 4: Simplify right side
    805,310.63x = 492,008,058,776.67
  5. Step 5: Solve for x
    x = 492,008,058,776.67/805,310.63
  6. Step 6: Final answer
    x = 610,954.39

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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.