Home / 1,361,225.76-1,878,459.60-757,600.80

Finding the Fourth Proportional to 1,361,225.76, 1,878,459.60 and 757,600.80

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Solution

The fourth proportional to 1,361,225.76, 1,878,459.60 and 757,600.80 is: 1,045,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,225.76 : 1,878,459.60 = 757,600.80 : x
  2. Step 2: Convert to fraction form
    1,361,225.76/1,878,459.60 = 757,600.80/x
  3. Step 3: Cross multiply
    1,361,225.76x = 1,878,459.60 × 757,600.80
  4. Step 4: Simplify right side
    1,361,225.76x = 1,423,122,495,727.68
  5. Step 5: Solve for x
    x = 1,423,122,495,727.68/1,361,225.76
  6. Step 6: Final answer
    x = 1,045,471.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.