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Finding the Fourth Proportional to 562,034.09, 775,613.17 and 307,379.81

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Solution

The fourth proportional to 562,034.09, 775,613.17 and 307,379.81 is: 424,187.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,034.09 : 775,613.17 = 307,379.81 : x
  2. Step 2: Convert to fraction form
    562,034.09/775,613.17 = 307,379.81/x
  3. Step 3: Cross multiply
    562,034.09x = 775,613.17 × 307,379.81
  4. Step 4: Simplify right side
    562,034.09x = 238,407,831,151.36
  5. Step 5: Solve for x
    x = 238,407,831,151.36/562,034.09
  6. Step 6: Final answer
    x = 424,187.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.