Home / 753,225.53-1,133,910.41-686,188.40

Finding the Fourth Proportional to 753,225.53, 1,133,910.41 and 686,188.40

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Solution

The fourth proportional to 753,225.53, 1,133,910.41 and 686,188.40 is: 1,032,992.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,225.53 : 1,133,910.41 = 686,188.40 : x
  2. Step 2: Convert to fraction form
    753,225.53/1,133,910.41 = 686,188.40/x
  3. Step 3: Cross multiply
    753,225.53x = 1,133,910.41 × 686,188.40
  4. Step 4: Simplify right side
    753,225.53x = 778,076,160,880.75
  5. Step 5: Solve for x
    x = 778,076,160,880.75/753,225.53
  6. Step 6: Final answer
    x = 1,032,992.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.