Home / 991,935.36-1,368,886.08-539,228.16

Finding the Fourth Proportional to 991,935.36, 1,368,886.08 and 539,228.16

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Solution

The fourth proportional to 991,935.36, 1,368,886.08 and 539,228.16 is: 744,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,935.36 : 1,368,886.08 = 539,228.16 : x
  2. Step 2: Convert to fraction form
    991,935.36/1,368,886.08 = 539,228.16/x
  3. Step 3: Cross multiply
    991,935.36x = 1,368,886.08 × 539,228.16
  4. Step 4: Simplify right side
    991,935.36x = 738,141,922,168.01
  5. Step 5: Solve for x
    x = 738,141,922,168.01/991,935.36
  6. Step 6: Final answer
    x = 744,143.17

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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.