Home / 778,787.24-1,168,175.55-419,127.32

Finding the Fourth Proportional to 778,787.24, 1,168,175.55 and 419,127.32

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Solution

The fourth proportional to 778,787.24, 1,168,175.55 and 419,127.32 is: 628,688.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,787.24 : 1,168,175.55 = 419,127.32 : x
  2. Step 2: Convert to fraction form
    778,787.24/1,168,175.55 = 419,127.32/x
  3. Step 3: Cross multiply
    778,787.24x = 1,168,175.55 × 419,127.32
  4. Step 4: Simplify right side
    778,787.24x = 489,614,287,561.03
  5. Step 5: Solve for x
    x = 489,614,287,561.03/778,787.24
  6. Step 6: Final answer
    x = 628,688.12

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1.5x scale

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.