Home / 899,616.84-1,242,400.86-778,175.16

Finding the Fourth Proportional to 899,616.84, 1,242,400.86 and 778,175.16

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Solution

The fourth proportional to 899,616.84, 1,242,400.86 and 778,175.16 is: 1,074,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,616.84 : 1,242,400.86 = 778,175.16 : x
  2. Step 2: Convert to fraction form
    899,616.84/1,242,400.86 = 778,175.16/x
  3. Step 3: Cross multiply
    899,616.84x = 1,242,400.86 × 778,175.16
  4. Step 4: Simplify right side
    899,616.84x = 966,805,488,014.64
  5. Step 5: Solve for x
    x = 966,805,488,014.64/899,616.84
  6. Step 6: Final answer
    x = 1,074,685.85

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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.