Home / 740,317.44-1,021,640.40-400,787.04

Finding the Fourth Proportional to 740,317.44, 1,021,640.40 and 400,787.04

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Solution

The fourth proportional to 740,317.44, 1,021,640.40 and 400,787.04 is: 553,087.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,317.44 : 1,021,640.40 = 400,787.04 : x
  2. Step 2: Convert to fraction form
    740,317.44/1,021,640.40 = 400,787.04/x
  3. Step 3: Cross multiply
    740,317.44x = 1,021,640.40 × 400,787.04
  4. Step 4: Simplify right side
    740,317.44x = 409,460,231,860.42
  5. Step 5: Solve for x
    x = 409,460,231,860.42/740,317.44
  6. Step 6: Final answer
    x = 553,087.38

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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.