Home / 743,262.52-1,025,701.50-403,728.40

Finding the Fourth Proportional to 743,262.52, 1,025,701.50 and 403,728.40

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Solution

The fourth proportional to 743,262.52, 1,025,701.50 and 403,728.40 is: 557,144.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,262.52 : 1,025,701.50 = 403,728.40 : x
  2. Step 2: Convert to fraction form
    743,262.52/1,025,701.50 = 403,728.40/x
  3. Step 3: Cross multiply
    743,262.52x = 1,025,701.50 × 403,728.40
  4. Step 4: Simplify right side
    743,262.52x = 414,104,825,472.60
  5. Step 5: Solve for x
    x = 414,104,825,472.60/743,262.52
  6. Step 6: Final answer
    x = 557,144.77

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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.