Home / 817,766.60-1,128,492.78-455,181.16

Finding the Fourth Proportional to 817,766.60, 1,128,492.78 and 455,181.16

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Solution

The fourth proportional to 817,766.60, 1,128,492.78 and 455,181.16 is: 628,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,766.60 : 1,128,492.78 = 455,181.16 : x
  2. Step 2: Convert to fraction form
    817,766.60/1,128,492.78 = 455,181.16/x
  3. Step 3: Cross multiply
    817,766.60x = 1,128,492.78 × 455,181.16
  4. Step 4: Simplify right side
    817,766.60x = 513,668,652,652.03
  5. Step 5: Solve for x
    x = 513,668,652,652.03/817,766.60
  6. Step 6: Final answer
    x = 628,136.01

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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.