Home / 1,152,081.80-1,728,122.70-646,123.40

Finding the Fourth Proportional to 1,152,081.80, 1,728,122.70 and 646,123.40

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Solution

The fourth proportional to 1,152,081.80, 1,728,122.70 and 646,123.40 is: 969,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,081.80 : 1,728,122.70 = 646,123.40 : x
  2. Step 2: Convert to fraction form
    1,152,081.80/1,728,122.70 = 646,123.40/x
  3. Step 3: Cross multiply
    1,152,081.80x = 1,728,122.70 × 646,123.40
  4. Step 4: Simplify right side
    1,152,081.80x = 1,116,580,514,541.18
  5. Step 5: Solve for x
    x = 1,116,580,514,541.18/1,152,081.80
  6. Step 6: Final answer
    x = 969,185.10

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Similar ratio
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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.