Home / 535,628.81-739,113.93-320,763.35

Finding the Fourth Proportional to 535,628.81, 739,113.93 and 320,763.35

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Solution

The fourth proportional to 535,628.81, 739,113.93 and 320,763.35 is: 442,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,628.81 : 739,113.93 = 320,763.35 : x
  2. Step 2: Convert to fraction form
    535,628.81/739,113.93 = 320,763.35/x
  3. Step 3: Cross multiply
    535,628.81x = 739,113.93 × 320,763.35
  4. Step 4: Simplify right side
    535,628.81x = 237,080,660,218.47
  5. Step 5: Solve for x
    x = 237,080,660,218.47/535,628.81
  6. Step 6: Final answer
    x = 442,621.19

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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.