Home / 739,759.62-1,020,863.98-400,220.58

Finding the Fourth Proportional to 739,759.62, 1,020,863.98 and 400,220.58

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Solution

The fourth proportional to 739,759.62, 1,020,863.98 and 400,220.58 is: 552,302.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,759.62 : 1,020,863.98 = 400,220.58 : x
  2. Step 2: Convert to fraction form
    739,759.62/1,020,863.98 = 400,220.58/x
  3. Step 3: Cross multiply
    739,759.62x = 1,020,863.98 × 400,220.58
  4. Step 4: Simplify right side
    739,759.62x = 408,570,774,176.71
  5. Step 5: Solve for x
    x = 408,570,774,176.71/739,759.62
  6. Step 6: Final answer
    x = 552,302.08

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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.