Home / 751,505.40-1,128,132.90-452,323.80

Finding the Fourth Proportional to 751,505.40, 1,128,132.90 and 452,323.80

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Solution

The fourth proportional to 751,505.40, 1,128,132.90 and 452,323.80 is: 679,012.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,505.40 : 1,128,132.90 = 452,323.80 : x
  2. Step 2: Convert to fraction form
    751,505.40/1,128,132.90 = 452,323.80/x
  3. Step 3: Cross multiply
    751,505.40x = 1,128,132.90 × 452,323.80
  4. Step 4: Simplify right side
    751,505.40x = 510,281,360,233.02
  5. Step 5: Solve for x
    x = 510,281,360,233.02/751,505.40
  6. Step 6: Final answer
    x = 679,012.23

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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.