Home / 769,458.98-1,153,825.21-449,702.58

Finding the Fourth Proportional to 769,458.98, 1,153,825.21 and 449,702.58

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Solution

The fourth proportional to 769,458.98, 1,153,825.21 and 449,702.58 is: 674,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,458.98 : 1,153,825.21 = 449,702.58 : x
  2. Step 2: Convert to fraction form
    769,458.98/1,153,825.21 = 449,702.58/x
  3. Step 3: Cross multiply
    769,458.98x = 1,153,825.21 × 449,702.58
  4. Step 4: Simplify right side
    769,458.98x = 518,878,173,806.04
  5. Step 5: Solve for x
    x = 518,878,173,806.04/769,458.98
  6. Step 6: Final answer
    x = 674,341.57

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1.5x scale

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.