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Finding the Fourth Proportional to 608,826.51, 839,493 and 455,372.93

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Solution

The fourth proportional to 608,826.51, 839,493 and 455,372.93 is: 627,900.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,826.51 : 839,493 = 455,372.93 : x
  2. Step 2: Convert to fraction form
    608,826.51/839,493 = 455,372.93/x
  3. Step 3: Cross multiply
    608,826.51x = 839,493 × 455,372.93
  4. Step 4: Simplify right side
    608,826.51x = 382,282,382,927.03
  5. Step 5: Solve for x
    x = 382,282,382,927.03/608,826.51
  6. Step 6: Final answer
    x = 627,900.36

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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.