Home / 745,743.60-1,118,615.40-247,042.80

Finding the Fourth Proportional to 745,743.60, 1,118,615.40 and 247,042.80

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Solution

The fourth proportional to 745,743.60, 1,118,615.40 and 247,042.80 is: 370,564.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,743.60 : 1,118,615.40 = 247,042.80 : x
  2. Step 2: Convert to fraction form
    745,743.60/1,118,615.40 = 247,042.80/x
  3. Step 3: Cross multiply
    745,743.60x = 1,118,615.40 × 247,042.80
  4. Step 4: Simplify right side
    745,743.60x = 276,345,880,539.12
  5. Step 5: Solve for x
    x = 276,345,880,539.12/745,743.60
  6. Step 6: Final answer
    x = 370,564.20

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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.