Home / 743,138.10-1,025,513.73-403,599.06

Finding the Fourth Proportional to 743,138.10, 1,025,513.73 and 403,599.06

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Solution

The fourth proportional to 743,138.10, 1,025,513.73 and 403,599.06 is: 556,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,138.10 : 1,025,513.73 = 403,599.06 : x
  2. Step 2: Convert to fraction form
    743,138.10/1,025,513.73 = 403,599.06/x
  3. Step 3: Cross multiply
    743,138.10x = 1,025,513.73 × 403,599.06
  4. Step 4: Simplify right side
    743,138.10x = 413,896,377,445.09
  5. Step 5: Solve for x
    x = 413,896,377,445.09/743,138.10
  6. Step 6: Final answer
    x = 556,957.55

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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.