Home / 763,857.28-1,054,152.96-522,645.76

Finding the Fourth Proportional to 763,857.28, 1,054,152.96 and 522,645.76

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Solution

The fourth proportional to 763,857.28, 1,054,152.96 and 522,645.76 is: 721,271.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,857.28 : 1,054,152.96 = 522,645.76 : x
  2. Step 2: Convert to fraction form
    763,857.28/1,054,152.96 = 522,645.76/x
  3. Step 3: Cross multiply
    763,857.28x = 1,054,152.96 × 522,645.76
  4. Step 4: Simplify right side
    763,857.28x = 550,948,574,935.45
  5. Step 5: Solve for x
    x = 550,948,574,935.45/763,857.28
  6. Step 6: Final answer
    x = 721,271.62

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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.