Home / 780,630.48-1,076,675.66-671,919.84

Finding the Fourth Proportional to 780,630.48, 1,076,675.66 and 671,919.84

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Solution

The fourth proportional to 780,630.48, 1,076,675.66 and 671,919.84 is: 926,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,630.48 : 1,076,675.66 = 671,919.84 : x
  2. Step 2: Convert to fraction form
    780,630.48/1,076,675.66 = 671,919.84/x
  3. Step 3: Cross multiply
    780,630.48x = 1,076,675.66 × 671,919.84
  4. Step 4: Simplify right side
    780,630.48x = 723,439,737,199.09
  5. Step 5: Solve for x
    x = 723,439,737,199.09/780,630.48
  6. Step 6: Final answer
    x = 926,737.75

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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.