Home / 1,091,693.30-1,638,123.15-492,746.90

Finding the Fourth Proportional to 1,091,693.30, 1,638,123.15 and 492,746.90

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Solution

The fourth proportional to 1,091,693.30, 1,638,123.15 and 492,746.90 is: 739,383.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,693.30 : 1,638,123.15 = 492,746.90 : x
  2. Step 2: Convert to fraction form
    1,091,693.30/1,638,123.15 = 492,746.90/x
  3. Step 3: Cross multiply
    1,091,693.30x = 1,638,123.15 × 492,746.90
  4. Step 4: Simplify right side
    1,091,693.30x = 807,180,103,980.74
  5. Step 5: Solve for x
    x = 807,180,103,980.74/1,091,693.30
  6. Step 6: Final answer
    x = 739,383.58

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Double scale
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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.