Home / 1,515,376.35-2,091,901.34-999,436.32

Finding the Fourth Proportional to 1,515,376.35, 2,091,901.34 and 999,436.32

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Solution

The fourth proportional to 1,515,376.35, 2,091,901.34 and 999,436.32 is: 1,379,671.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,376.35 : 2,091,901.34 = 999,436.32 : x
  2. Step 2: Convert to fraction form
    1,515,376.35/2,091,901.34 = 999,436.32/x
  3. Step 3: Cross multiply
    1,515,376.35x = 2,091,901.34 × 999,436.32
  4. Step 4: Simplify right side
    1,515,376.35x = 2,090,722,179,551.26
  5. Step 5: Solve for x
    x = 2,090,722,179,551.26/1,515,376.35
  6. Step 6: Final answer
    x = 1,379,671.91

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Double scale
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1.5x scale

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.