Home / 745,812.40-1,118,718.60-213,365.20

Finding the Fourth Proportional to 745,812.40, 1,118,718.60 and 213,365.20

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Solution

The fourth proportional to 745,812.40, 1,118,718.60 and 213,365.20 is: 320,047.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,812.40 : 1,118,718.60 = 213,365.20 : x
  2. Step 2: Convert to fraction form
    745,812.40/1,118,718.60 = 213,365.20/x
  3. Step 3: Cross multiply
    745,812.40x = 1,118,718.60 × 213,365.20
  4. Step 4: Simplify right side
    745,812.40x = 238,695,617,832.72
  5. Step 5: Solve for x
    x = 238,695,617,832.72/745,812.40
  6. Step 6: Final answer
    x = 320,047.80

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Similar ratio
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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.