Home / 828,776.64-1,143,812.96-466,215.76

Finding the Fourth Proportional to 828,776.64, 1,143,812.96 and 466,215.76

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Solution

The fourth proportional to 828,776.64, 1,143,812.96 and 466,215.76 is: 643,434.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,776.64 : 1,143,812.96 = 466,215.76 : x
  2. Step 2: Convert to fraction form
    828,776.64/1,143,812.96 = 466,215.76/x
  3. Step 3: Cross multiply
    828,776.64x = 1,143,812.96 × 466,215.76
  4. Step 4: Simplify right side
    828,776.64x = 533,263,628,444.25
  5. Step 5: Solve for x
    x = 533,263,628,444.25/828,776.64
  6. Step 6: Final answer
    x = 643,434.68

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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.