Home / 756,071.70-1,134,107.55-686,087.70

Finding the Fourth Proportional to 756,071.70, 1,134,107.55 and 686,087.70

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Solution

The fourth proportional to 756,071.70, 1,134,107.55 and 686,087.70 is: 1,029,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,071.70 : 1,134,107.55 = 686,087.70 : x
  2. Step 2: Convert to fraction form
    756,071.70/1,134,107.55 = 686,087.70/x
  3. Step 3: Cross multiply
    756,071.70x = 1,134,107.55 × 686,087.70
  4. Step 4: Simplify right side
    756,071.70x = 778,097,240,532.14
  5. Step 5: Solve for x
    x = 778,097,240,532.14/756,071.70
  6. Step 6: Final answer
    x = 1,029,131.55

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1.5x scale

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.