Home / 756,376.20-1,134,564.30-686,392.20

Finding the Fourth Proportional to 756,376.20, 1,134,564.30 and 686,392.20

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Solution

The fourth proportional to 756,376.20, 1,134,564.30 and 686,392.20 is: 1,029,588.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,376.20 : 1,134,564.30 = 686,392.20 : x
  2. Step 2: Convert to fraction form
    756,376.20/1,134,564.30 = 686,392.20/x
  3. Step 3: Cross multiply
    756,376.20x = 1,134,564.30 × 686,392.20
  4. Step 4: Simplify right side
    756,376.20x = 778,756,085,918.46
  5. Step 5: Solve for x
    x = 778,756,085,918.46/756,376.20
  6. Step 6: Final answer
    x = 1,029,588.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.