Home / 768,437.26-1,060,454.34-428,905.50

Finding the Fourth Proportional to 768,437.26, 1,060,454.34 and 428,905.50

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Solution

The fourth proportional to 768,437.26, 1,060,454.34 and 428,905.50 is: 591,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,437.26 : 1,060,454.34 = 428,905.50 : x
  2. Step 2: Convert to fraction form
    768,437.26/1,060,454.34 = 428,905.50/x
  3. Step 3: Cross multiply
    768,437.26x = 1,060,454.34 × 428,905.50
  4. Step 4: Simplify right side
    768,437.26x = 454,834,698,924.87
  5. Step 5: Solve for x
    x = 454,834,698,924.87/768,437.26
  6. Step 6: Final answer
    x = 591,895.69

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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.