Home / 751,515.40-1,127,273.10-513,569.80

Finding the Fourth Proportional to 751,515.40, 1,127,273.10 and 513,569.80

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Solution

The fourth proportional to 751,515.40, 1,127,273.10 and 513,569.80 is: 770,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,515.40 : 1,127,273.10 = 513,569.80 : x
  2. Step 2: Convert to fraction form
    751,515.40/1,127,273.10 = 513,569.80/x
  3. Step 3: Cross multiply
    751,515.40x = 1,127,273.10 × 513,569.80
  4. Step 4: Simplify right side
    751,515.40x = 578,933,420,512.38
  5. Step 5: Solve for x
    x = 578,933,420,512.38/751,515.40
  6. Step 6: Final answer
    x = 770,354.70

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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.