Home / 757,978.08-1,045,982.34-418,439.04

Finding the Fourth Proportional to 757,978.08, 1,045,982.34 and 418,439.04

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Solution

The fourth proportional to 757,978.08, 1,045,982.34 and 418,439.04 is: 577,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,978.08 : 1,045,982.34 = 418,439.04 : x
  2. Step 2: Convert to fraction form
    757,978.08/1,045,982.34 = 418,439.04/x
  3. Step 3: Cross multiply
    757,978.08x = 1,045,982.34 × 418,439.04
  4. Step 4: Simplify right side
    757,978.08x = 437,679,846,206.55
  5. Step 5: Solve for x
    x = 437,679,846,206.55/757,978.08
  6. Step 6: Final answer
    x = 577,430.74

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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.