Home / 817,735.62-1,128,475.22-455,151.70

Finding the Fourth Proportional to 817,735.62, 1,128,475.22 and 455,151.70

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Solution

The fourth proportional to 817,735.62, 1,128,475.22 and 455,151.70 is: 628,109.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,735.62 : 1,128,475.22 = 455,151.70 : x
  2. Step 2: Convert to fraction form
    817,735.62/1,128,475.22 = 455,151.70/x
  3. Step 3: Cross multiply
    817,735.62x = 1,128,475.22 × 455,151.70
  4. Step 4: Simplify right side
    817,735.62x = 513,627,413,925.71
  5. Step 5: Solve for x
    x = 513,627,413,925.71/817,735.62
  6. Step 6: Final answer
    x = 628,109.38

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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.