Home / 805,317.63-1,111,309.99-442,738.86

Finding the Fourth Proportional to 805,317.63, 1,111,309.99 and 442,738.86

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Solution

The fourth proportional to 805,317.63, 1,111,309.99 and 442,738.86 is: 610,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,317.63 : 1,111,309.99 = 442,738.86 : x
  2. Step 2: Convert to fraction form
    805,317.63/1,111,309.99 = 442,738.86/x
  3. Step 3: Cross multiply
    805,317.63x = 1,111,309.99 × 442,738.86
  4. Step 4: Simplify right side
    805,317.63x = 492,020,118,079.21
  5. Step 5: Solve for x
    x = 492,020,118,079.21/805,317.63
  6. Step 6: Final answer
    x = 610,964.05

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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.