Home / 1,115,064.16-1,671,662.40-777,113.44

Finding the Fourth Proportional to 1,115,064.16, 1,671,662.40 and 777,113.44

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Solution

The fourth proportional to 1,115,064.16, 1,671,662.40 and 777,113.44 is: 1,165,019.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,064.16 : 1,671,662.40 = 777,113.44 : x
  2. Step 2: Convert to fraction form
    1,115,064.16/1,671,662.40 = 777,113.44/x
  3. Step 3: Cross multiply
    1,115,064.16x = 1,671,662.40 × 777,113.44
  4. Step 4: Simplify right side
    1,115,064.16x = 1,299,071,318,182.66
  5. Step 5: Solve for x
    x = 1,299,071,318,182.66/1,115,064.16
  6. Step 6: Final answer
    x = 1,165,019.35

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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.