Home / 759,494.17-1,048,099.21-428,323.78

Finding the Fourth Proportional to 759,494.17, 1,048,099.21 and 428,323.78

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Solution

The fourth proportional to 759,494.17, 1,048,099.21 and 428,323.78 is: 591,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,494.17 : 1,048,099.21 = 428,323.78 : x
  2. Step 2: Convert to fraction form
    759,494.17/1,048,099.21 = 428,323.78/x
  3. Step 3: Cross multiply
    759,494.17x = 1,048,099.21 × 428,323.78
  4. Step 4: Simplify right side
    759,494.17x = 448,925,815,442.21
  5. Step 5: Solve for x
    x = 448,925,815,442.21/759,494.17
  6. Step 6: Final answer
    x = 591,085.27

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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.