Home / 756,107.10-1,134,160.65-686,123.10

Finding the Fourth Proportional to 756,107.10, 1,134,160.65 and 686,123.10

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Solution

The fourth proportional to 756,107.10, 1,134,160.65 and 686,123.10 is: 1,029,184.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,107.10 : 1,134,160.65 = 686,123.10 : x
  2. Step 2: Convert to fraction form
    756,107.10/1,134,160.65 = 686,123.10/x
  3. Step 3: Cross multiply
    756,107.10x = 1,134,160.65 × 686,123.10
  4. Step 4: Simplify right side
    756,107.10x = 778,173,821,076.02
  5. Step 5: Solve for x
    x = 778,173,821,076.02/756,107.10
  6. Step 6: Final answer
    x = 1,029,184.65

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Double scale
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Similar ratio
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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.