Home / 751,630.80-1,124,821.80-515,434.80

Finding the Fourth Proportional to 751,630.80, 1,124,821.80 and 515,434.80

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Solution

The fourth proportional to 751,630.80, 1,124,821.80 and 515,434.80 is: 771,352.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,630.80 : 1,124,821.80 = 515,434.80 : x
  2. Step 2: Convert to fraction form
    751,630.80/1,124,821.80 = 515,434.80/x
  3. Step 3: Cross multiply
    751,630.80x = 1,124,821.80 × 515,434.80
  4. Step 4: Simplify right side
    751,630.80x = 579,772,299,518.64
  5. Step 5: Solve for x
    x = 579,772,299,518.64/751,630.80
  6. Step 6: Final answer
    x = 771,352.50

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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.