Home / 1,137,743.72-1,570,056.26-628,435.16

Finding the Fourth Proportional to 1,137,743.72, 1,570,056.26 and 628,435.16

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Solution

The fourth proportional to 1,137,743.72, 1,570,056.26 and 628,435.16 is: 867,223.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,743.72 : 1,570,056.26 = 628,435.16 : x
  2. Step 2: Convert to fraction form
    1,137,743.72/1,570,056.26 = 628,435.16/x
  3. Step 3: Cross multiply
    1,137,743.72x = 1,570,056.26 × 628,435.16
  4. Step 4: Simplify right side
    1,137,743.72x = 986,678,556,962.10
  5. Step 5: Solve for x
    x = 986,678,556,962.10/1,137,743.72
  6. Step 6: Final answer
    x = 867,223.91

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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.