Home / 1,403,998.70-2,105,998.05-457,465.10

Finding the Fourth Proportional to 1,403,998.70, 2,105,998.05 and 457,465.10

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Solution

The fourth proportional to 1,403,998.70, 2,105,998.05 and 457,465.10 is: 686,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,998.70 : 2,105,998.05 = 457,465.10 : x
  2. Step 2: Convert to fraction form
    1,403,998.70/2,105,998.05 = 457,465.10/x
  3. Step 3: Cross multiply
    1,403,998.70x = 2,105,998.05 × 457,465.10
  4. Step 4: Simplify right side
    1,403,998.70x = 963,420,608,543.06
  5. Step 5: Solve for x
    x = 963,420,608,543.06/1,403,998.70
  6. Step 6: Final answer
    x = 686,197.65

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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.