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Finding the Fourth Proportional to 751,550.40, 1,128,200.40 and 452,368.80

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Solution

The fourth proportional to 751,550.40, 1,128,200.40 and 452,368.80 is: 679,079.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,550.40 : 1,128,200.40 = 452,368.80 : x
  2. Step 2: Convert to fraction form
    751,550.40/1,128,200.40 = 452,368.80/x
  3. Step 3: Cross multiply
    751,550.40x = 1,128,200.40 × 452,368.80
  4. Step 4: Simplify right side
    751,550.40x = 510,362,661,107.52
  5. Step 5: Solve for x
    x = 510,362,661,107.52/751,550.40
  6. Step 6: Final answer
    x = 679,079.75

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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.