Home / 743,138.46-1,025,530.16-403,604.28

Finding the Fourth Proportional to 743,138.46, 1,025,530.16 and 403,604.28

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Solution

The fourth proportional to 743,138.46, 1,025,530.16 and 403,604.28 is: 556,973.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,138.46 : 1,025,530.16 = 403,604.28 : x
  2. Step 2: Convert to fraction form
    743,138.46/1,025,530.16 = 403,604.28/x
  3. Step 3: Cross multiply
    743,138.46x = 1,025,530.16 × 403,604.28
  4. Step 4: Simplify right side
    743,138.46x = 413,908,359,827.06
  5. Step 5: Solve for x
    x = 413,908,359,827.06/743,138.46
  6. Step 6: Final answer
    x = 556,973.41

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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.