Home / 756,153.12-1,043,490.48-416,621.28

Finding the Fourth Proportional to 756,153.12, 1,043,490.48 and 416,621.28

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Solution

The fourth proportional to 756,153.12, 1,043,490.48 and 416,621.28 is: 574,936.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,153.12 : 1,043,490.48 = 416,621.28 : x
  2. Step 2: Convert to fraction form
    756,153.12/1,043,490.48 = 416,621.28/x
  3. Step 3: Cross multiply
    756,153.12x = 1,043,490.48 × 416,621.28
  4. Step 4: Simplify right side
    756,153.12x = 434,740,339,445.41
  5. Step 5: Solve for x
    x = 434,740,339,445.41/756,153.12
  6. Step 6: Final answer
    x = 574,936.91

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1.5x scale

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.