Home / 805,338.93-1,111,368.42-442,768.98

Finding the Fourth Proportional to 805,338.93, 1,111,368.42 and 442,768.98

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Solution

The fourth proportional to 805,338.93, 1,111,368.42 and 442,768.98 is: 611,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,338.93 : 1,111,368.42 = 442,768.98 : x
  2. Step 2: Convert to fraction form
    805,338.93/1,111,368.42 = 442,768.98/x
  3. Step 3: Cross multiply
    805,338.93x = 1,111,368.42 × 442,768.98
  4. Step 4: Simplify right side
    805,338.93x = 492,079,461,727.61
  5. Step 5: Solve for x
    x = 492,079,461,727.61/805,338.93
  6. Step 6: Final answer
    x = 611,021.58

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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.