Home / 745,867.61-1,118,812.34-213,389.60

Finding the Fourth Proportional to 745,867.61, 1,118,812.34 and 213,389.60

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Solution

The fourth proportional to 745,867.61, 1,118,812.34 and 213,389.60 is: 320,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,867.61 : 1,118,812.34 = 213,389.60 : x
  2. Step 2: Convert to fraction form
    745,867.61/1,118,812.34 = 213,389.60/x
  3. Step 3: Cross multiply
    745,867.61x = 1,118,812.34 × 213,389.60
  4. Step 4: Simplify right side
    745,867.61x = 238,742,917,707.66
  5. Step 5: Solve for x
    x = 238,742,917,707.66/745,867.61
  6. Step 6: Final answer
    x = 320,087.53

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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.