Home / 785,820.48-1,084,439.52-428,124.48

Finding the Fourth Proportional to 785,820.48, 1,084,439.52 and 428,124.48

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Solution

The fourth proportional to 785,820.48, 1,084,439.52 and 428,124.48 is: 590,815.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,820.48 : 1,084,439.52 = 428,124.48 : x
  2. Step 2: Convert to fraction form
    785,820.48/1,084,439.52 = 428,124.48/x
  3. Step 3: Cross multiply
    785,820.48x = 1,084,439.52 × 428,124.48
  4. Step 4: Simplify right side
    785,820.48x = 464,275,105,591.45
  5. Step 5: Solve for x
    x = 464,275,105,591.45/785,820.48
  6. Step 6: Final answer
    x = 590,815.74

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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.