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Finding the Fourth Proportional to 556,450.73, 767,919.39 and 314,728.58

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Solution

The fourth proportional to 556,450.73, 767,919.39 and 314,728.58 is: 434,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,450.73 : 767,919.39 = 314,728.58 : x
  2. Step 2: Convert to fraction form
    556,450.73/767,919.39 = 314,728.58/x
  3. Step 3: Cross multiply
    556,450.73x = 767,919.39 × 314,728.58
  4. Step 4: Simplify right side
    556,450.73x = 241,686,175,329.57
  5. Step 5: Solve for x
    x = 241,686,175,329.57/556,450.73
  6. Step 6: Final answer
    x = 434,335.27

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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.