Home / 742,140.33-1,113,256.67-209,702.22

Finding the Fourth Proportional to 742,140.33, 1,113,256.67 and 209,702.22

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Solution

The fourth proportional to 742,140.33, 1,113,256.67 and 209,702.22 is: 314,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,140.33 : 1,113,256.67 = 209,702.22 : x
  2. Step 2: Convert to fraction form
    742,140.33/1,113,256.67 = 209,702.22/x
  3. Step 3: Cross multiply
    742,140.33x = 1,113,256.67 × 209,702.22
  4. Step 4: Simplify right side
    742,140.33x = 233,452,394,080.30
  5. Step 5: Solve for x
    x = 233,452,394,080.30/742,140.33
  6. Step 6: Final answer
    x = 314,566.38

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Double scale
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Similar ratio
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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.