Home / 743,240.64-1,025,672.40-403,716

Finding the Fourth Proportional to 743,240.64, 1,025,672.40 and 403,716

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Solution

The fourth proportional to 743,240.64, 1,025,672.40 and 403,716 is: 557,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,240.64 : 1,025,672.40 = 403,716 : x
  2. Step 2: Convert to fraction form
    743,240.64/1,025,672.40 = 403,716/x
  3. Step 3: Cross multiply
    743,240.64x = 1,025,672.40 × 403,716
  4. Step 4: Simplify right side
    743,240.64x = 414,080,358,638.40
  5. Step 5: Solve for x
    x = 414,080,358,638.40/743,240.64
  6. Step 6: Final answer
    x = 557,128.25

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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.