Home / 757,488.46-1,045,355.88-417,978.58

Finding the Fourth Proportional to 757,488.46, 1,045,355.88 and 417,978.58

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Solution

The fourth proportional to 757,488.46, 1,045,355.88 and 417,978.58 is: 576,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,488.46 : 1,045,355.88 = 417,978.58 : x
  2. Step 2: Convert to fraction form
    757,488.46/1,045,355.88 = 417,978.58/x
  3. Step 3: Cross multiply
    757,488.46x = 1,045,355.88 × 417,978.58
  4. Step 4: Simplify right side
    757,488.46x = 436,936,366,317.05
  5. Step 5: Solve for x
    x = 436,936,366,317.05/757,488.46
  6. Step 6: Final answer
    x = 576,822.47

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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.