Home / 811,744.28-1,216,451.84-456,009.92

Finding the Fourth Proportional to 811,744.28, 1,216,451.84 and 456,009.92

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Solution

The fourth proportional to 811,744.28, 1,216,451.84 and 456,009.92 is: 683,360.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,744.28 : 1,216,451.84 = 456,009.92 : x
  2. Step 2: Convert to fraction form
    811,744.28/1,216,451.84 = 456,009.92/x
  3. Step 3: Cross multiply
    811,744.28x = 1,216,451.84 × 456,009.92
  4. Step 4: Simplify right side
    811,744.28x = 554,714,106,242.25
  5. Step 5: Solve for x
    x = 554,714,106,242.25/811,744.28
  6. Step 6: Final answer
    x = 683,360.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.