Home / 1,333,123.44-1,999,063.08-772,318.32

Finding the Fourth Proportional to 1,333,123.44, 1,999,063.08 and 772,318.32

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Solution

The fourth proportional to 1,333,123.44, 1,999,063.08 and 772,318.32 is: 1,158,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,333,123.44 : 1,999,063.08 = 772,318.32 : x
  2. Step 2: Convert to fraction form
    1,333,123.44/1,999,063.08 = 772,318.32/x
  3. Step 3: Cross multiply
    1,333,123.44x = 1,999,063.08 × 772,318.32
  4. Step 4: Simplify right side
    1,333,123.44x = 1,543,913,039,519.63
  5. Step 5: Solve for x
    x = 1,543,913,039,519.63/1,333,123.44
  6. Step 6: Final answer
    x = 1,158,117.09

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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.