Home / 745,851.78-1,118,777.70-247,215.78

Finding the Fourth Proportional to 745,851.78, 1,118,777.70 and 247,215.78

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Solution

The fourth proportional to 745,851.78, 1,118,777.70 and 247,215.78 is: 370,823.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,851.78 : 1,118,777.70 = 247,215.78 : x
  2. Step 2: Convert to fraction form
    745,851.78/1,118,777.70 = 247,215.78/x
  3. Step 3: Cross multiply
    745,851.78x = 1,118,777.70 × 247,215.78
  4. Step 4: Simplify right side
    745,851.78x = 276,579,501,752.11
  5. Step 5: Solve for x
    x = 276,579,501,752.11/745,851.78
  6. Step 6: Final answer
    x = 370,823.68

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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.