Home / 763,859.28-1,054,155.72-522,647.76

Finding the Fourth Proportional to 763,859.28, 1,054,155.72 and 522,647.76

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Solution

The fourth proportional to 763,859.28, 1,054,155.72 and 522,647.76 is: 721,274.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,859.28 : 1,054,155.72 = 522,647.76 : x
  2. Step 2: Convert to fraction form
    763,859.28/1,054,155.72 = 522,647.76/x
  3. Step 3: Cross multiply
    763,859.28x = 1,054,155.72 × 522,647.76
  4. Step 4: Simplify right side
    763,859.28x = 550,952,125,749.19
  5. Step 5: Solve for x
    x = 550,952,125,749.19/763,859.28
  6. Step 6: Final answer
    x = 721,274.38

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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.