Home / 770,219.40-1,062,951.80-430,687.56

Finding the Fourth Proportional to 770,219.40, 1,062,951.80 and 430,687.56

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Solution

The fourth proportional to 770,219.40, 1,062,951.80 and 430,687.56 is: 594,376.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,219.40 : 1,062,951.80 = 430,687.56 : x
  2. Step 2: Convert to fraction form
    770,219.40/1,062,951.80 = 430,687.56/x
  3. Step 3: Cross multiply
    770,219.40x = 1,062,951.80 × 430,687.56
  4. Step 4: Simplify right side
    770,219.40x = 457,800,117,139.61
  5. Step 5: Solve for x
    x = 457,800,117,139.61/770,219.40
  6. Step 6: Final answer
    x = 594,376.25

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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.