Home / 678,980.68-1,017,505.44-500,080.84

Finding the Fourth Proportional to 678,980.68, 1,017,505.44 and 500,080.84

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Solution

The fourth proportional to 678,980.68, 1,017,505.44 and 500,080.84 is: 749,410.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,980.68 : 1,017,505.44 = 500,080.84 : x
  2. Step 2: Convert to fraction form
    678,980.68/1,017,505.44 = 500,080.84/x
  3. Step 3: Cross multiply
    678,980.68x = 1,017,505.44 × 500,080.84
  4. Step 4: Simplify right side
    678,980.68x = 508,834,975,139.77
  5. Step 5: Solve for x
    x = 508,834,975,139.77/678,980.68
  6. Step 6: Final answer
    x = 749,410.09

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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.