Home / 916,936.80-1,374,238.80-442,600.80

Finding the Fourth Proportional to 916,936.80, 1,374,238.80 and 442,600.80

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Solution

The fourth proportional to 916,936.80, 1,374,238.80 and 442,600.80 is: 663,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,936.80 : 1,374,238.80 = 442,600.80 : x
  2. Step 2: Convert to fraction form
    916,936.80/1,374,238.80 = 442,600.80/x
  3. Step 3: Cross multiply
    916,936.80x = 1,374,238.80 × 442,600.80
  4. Step 4: Simplify right side
    916,936.80x = 608,239,192,271.04
  5. Step 5: Solve for x
    x = 608,239,192,271.04/916,936.80
  6. Step 6: Final answer
    x = 663,338.18

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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.