Home / 769,987.20-1,062,606.72-430,454.40

Finding the Fourth Proportional to 769,987.20, 1,062,606.72 and 430,454.40

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Solution

The fourth proportional to 769,987.20, 1,062,606.72 and 430,454.40 is: 594,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,987.20 : 1,062,606.72 = 430,454.40 : x
  2. Step 2: Convert to fraction form
    769,987.20/1,062,606.72 = 430,454.40/x
  3. Step 3: Cross multiply
    769,987.20x = 1,062,606.72 × 430,454.40
  4. Step 4: Simplify right side
    769,987.20x = 457,403,738,093.57
  5. Step 5: Solve for x
    x = 457,403,738,093.57/769,987.20
  6. Step 6: Final answer
    x = 594,040.70

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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.