Home / 779,989.46-1,076,392.53-457,704.90

Finding the Fourth Proportional to 779,989.46, 1,076,392.53 and 457,704.90

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Solution

The fourth proportional to 779,989.46, 1,076,392.53 and 457,704.90 is: 631,636.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,989.46 : 1,076,392.53 = 457,704.90 : x
  2. Step 2: Convert to fraction form
    779,989.46/1,076,392.53 = 457,704.90/x
  3. Step 3: Cross multiply
    779,989.46x = 1,076,392.53 × 457,704.90
  4. Step 4: Simplify right side
    779,989.46x = 492,670,135,304.40
  5. Step 5: Solve for x
    x = 492,670,135,304.40/779,989.46
  6. Step 6: Final answer
    x = 631,636.92

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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.