Home / 805,332.45-1,111,359.48-442,762.47

Finding the Fourth Proportional to 805,332.45, 1,111,359.48 and 442,762.47

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Solution

The fourth proportional to 805,332.45, 1,111,359.48 and 442,762.47 is: 611,012.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,332.45 : 1,111,359.48 = 442,762.47 : x
  2. Step 2: Convert to fraction form
    805,332.45/1,111,359.48 = 442,762.47/x
  3. Step 3: Cross multiply
    805,332.45x = 1,111,359.48 × 442,762.47
  4. Step 4: Simplify right side
    805,332.45x = 492,068,268,422.72
  5. Step 5: Solve for x
    x = 492,068,268,422.72/805,332.45
  6. Step 6: Final answer
    x = 611,012.59

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1.5x scale

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.