Home / 1,377,271.10-2,065,906.65-430,640.30

Finding the Fourth Proportional to 1,377,271.10, 2,065,906.65 and 430,640.30

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Solution

The fourth proportional to 1,377,271.10, 2,065,906.65 and 430,640.30 is: 645,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,271.10 : 2,065,906.65 = 430,640.30 : x
  2. Step 2: Convert to fraction form
    1,377,271.10/2,065,906.65 = 430,640.30/x
  3. Step 3: Cross multiply
    1,377,271.10x = 2,065,906.65 × 430,640.30
  4. Step 4: Simplify right side
    1,377,271.10x = 889,662,659,528.00
  5. Step 5: Solve for x
    x = 889,662,659,528.00/1,377,271.10
  6. Step 6: Final answer
    x = 645,960.45

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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.