Home / 817,646.59-1,128,332.37-450,120.73

Finding the Fourth Proportional to 817,646.59, 1,128,332.37 and 450,120.73

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Solution

The fourth proportional to 817,646.59, 1,128,332.37 and 450,120.73 is: 621,155.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,646.59 : 1,128,332.37 = 450,120.73 : x
  2. Step 2: Convert to fraction form
    817,646.59/1,128,332.37 = 450,120.73/x
  3. Step 3: Cross multiply
    817,646.59x = 1,128,332.37 × 450,120.73
  4. Step 4: Simplify right side
    817,646.59x = 507,885,795,759.33
  5. Step 5: Solve for x
    x = 507,885,795,759.33/817,646.59
  6. Step 6: Final answer
    x = 621,155.65

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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.