Home / 739,703.02-1,020,787.68-400,171.36

Finding the Fourth Proportional to 739,703.02, 1,020,787.68 and 400,171.36

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Solution

The fourth proportional to 739,703.02, 1,020,787.68 and 400,171.36 is: 552,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,703.02 : 1,020,787.68 = 400,171.36 : x
  2. Step 2: Convert to fraction form
    739,703.02/1,020,787.68 = 400,171.36/x
  3. Step 3: Cross multiply
    739,703.02x = 1,020,787.68 × 400,171.36
  4. Step 4: Simplify right side
    739,703.02x = 408,489,994,176.85
  5. Step 5: Solve for x
    x = 408,489,994,176.85/739,703.02
  6. Step 6: Final answer
    x = 552,235.13

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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.