Home / 1,091,658.80-1,638,071.40-492,712.40

Finding the Fourth Proportional to 1,091,658.80, 1,638,071.40 and 492,712.40

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Solution

The fourth proportional to 1,091,658.80, 1,638,071.40 and 492,712.40 is: 739,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,658.80 : 1,638,071.40 = 492,712.40 : x
  2. Step 2: Convert to fraction form
    1,091,658.80/1,638,071.40 = 492,712.40/x
  3. Step 3: Cross multiply
    1,091,658.80x = 1,638,071.40 × 492,712.40
  4. Step 4: Simplify right side
    1,091,658.80x = 807,098,090,865.36
  5. Step 5: Solve for x
    x = 807,098,090,865.36/1,091,658.80
  6. Step 6: Final answer
    x = 739,331.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.