Home / 814,368.60-1,222,136.10-459,005.40

Finding the Fourth Proportional to 814,368.60, 1,222,136.10 and 459,005.40

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Solution

The fourth proportional to 814,368.60, 1,222,136.10 and 459,005.40 is: 688,836.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,368.60 : 1,222,136.10 = 459,005.40 : x
  2. Step 2: Convert to fraction form
    814,368.60/1,222,136.10 = 459,005.40/x
  3. Step 3: Cross multiply
    814,368.60x = 1,222,136.10 × 459,005.40
  4. Step 4: Simplify right side
    814,368.60x = 560,967,069,434.94
  5. Step 5: Solve for x
    x = 560,967,069,434.94/814,368.60
  6. Step 6: Final answer
    x = 688,836.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.