Home / 535,627.81-739,112.55-320,762.35

Finding the Fourth Proportional to 535,627.81, 739,112.55 and 320,762.35

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Solution

The fourth proportional to 535,627.81, 739,112.55 and 320,762.35 is: 442,619.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,627.81 : 739,112.55 = 320,762.35 : x
  2. Step 2: Convert to fraction form
    535,627.81/739,112.55 = 320,762.35/x
  3. Step 3: Cross multiply
    535,627.81x = 739,112.55 × 320,762.35
  4. Step 4: Simplify right side
    535,627.81x = 237,079,478,452.49
  5. Step 5: Solve for x
    x = 237,079,478,452.49/535,627.81
  6. Step 6: Final answer
    x = 442,619.81

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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.