Home / 817,674.32-1,128,379.26-455,098.30

Finding the Fourth Proportional to 817,674.32, 1,128,379.26 and 455,098.30

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Solution

The fourth proportional to 817,674.32, 1,128,379.26 and 455,098.30 is: 628,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,674.32 : 1,128,379.26 = 455,098.30 : x
  2. Step 2: Convert to fraction form
    817,674.32/1,128,379.26 = 455,098.30/x
  3. Step 3: Cross multiply
    817,674.32x = 1,128,379.26 × 455,098.30
  4. Step 4: Simplify right side
    817,674.32x = 513,523,482,981.26
  5. Step 5: Solve for x
    x = 513,523,482,981.26/817,674.32
  6. Step 6: Final answer
    x = 628,029.36

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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.