Home / 743,350.77-1,025,818.43-403,821.45

Finding the Fourth Proportional to 743,350.77, 1,025,818.43 and 403,821.45

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Solution

The fourth proportional to 743,350.77, 1,025,818.43 and 403,821.45 is: 557,270.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,350.77 : 1,025,818.43 = 403,821.45 : x
  2. Step 2: Convert to fraction form
    743,350.77/1,025,818.43 = 403,821.45/x
  3. Step 3: Cross multiply
    743,350.77x = 1,025,818.43 × 403,821.45
  4. Step 4: Simplify right side
    743,350.77x = 414,247,483,820.22
  5. Step 5: Solve for x
    x = 414,247,483,820.22/743,350.77
  6. Step 6: Final answer
    x = 557,270.54

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1.5x scale

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.