Home / 742,111.20-1,112,680.80-292,561.20

Finding the Fourth Proportional to 742,111.20, 1,112,680.80 and 292,561.20

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Solution

The fourth proportional to 742,111.20, 1,112,680.80 and 292,561.20 is: 438,650.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,111.20 : 1,112,680.80 = 292,561.20 : x
  2. Step 2: Convert to fraction form
    742,111.20/1,112,680.80 = 292,561.20/x
  3. Step 3: Cross multiply
    742,111.20x = 1,112,680.80 × 292,561.20
  4. Step 4: Simplify right side
    742,111.20x = 325,527,230,064.96
  5. Step 5: Solve for x
    x = 325,527,230,064.96/742,111.20
  6. Step 6: Final answer
    x = 438,650.21

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Double scale
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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.