Home / 991,516.95-1,368,301.95-538,807.95

Finding the Fourth Proportional to 991,516.95, 1,368,301.95 and 538,807.95

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Solution

The fourth proportional to 991,516.95, 1,368,301.95 and 538,807.95 is: 743,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,516.95 : 1,368,301.95 = 538,807.95 : x
  2. Step 2: Convert to fraction form
    991,516.95/1,368,301.95 = 538,807.95/x
  3. Step 3: Cross multiply
    991,516.95x = 1,368,301.95 × 538,807.95
  4. Step 4: Simplify right side
    991,516.95x = 737,251,968,660.50
  5. Step 5: Solve for x
    x = 737,251,968,660.50/991,516.95
  6. Step 6: Final answer
    x = 743,559.62

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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.