Home / 786,138.52-1,084,874.76-446,625.40

Finding the Fourth Proportional to 786,138.52, 1,084,874.76 and 446,625.40

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Solution

The fourth proportional to 786,138.52, 1,084,874.76 and 446,625.40 is: 616,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,138.52 : 1,084,874.76 = 446,625.40 : x
  2. Step 2: Convert to fraction form
    786,138.52/1,084,874.76 = 446,625.40/x
  3. Step 3: Cross multiply
    786,138.52x = 1,084,874.76 × 446,625.40
  4. Step 4: Simplify right side
    786,138.52x = 484,532,623,634.90
  5. Step 5: Solve for x
    x = 484,532,623,634.90/786,138.52
  6. Step 6: Final answer
    x = 616,345.10

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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.