Home / 1,377,913.70-2,066,935.35-431,315.30

Finding the Fourth Proportional to 1,377,913.70, 2,066,935.35 and 431,315.30

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Solution

The fourth proportional to 1,377,913.70, 2,066,935.35 and 431,315.30 is: 646,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,913.70 : 2,066,935.35 = 431,315.30 : x
  2. Step 2: Convert to fraction form
    1,377,913.70/2,066,935.35 = 431,315.30/x
  3. Step 3: Cross multiply
    1,377,913.70x = 2,066,935.35 × 431,315.30
  4. Step 4: Simplify right side
    1,377,913.70x = 891,500,840,565.86
  5. Step 5: Solve for x
    x = 891,500,840,565.86/1,377,913.70
  6. Step 6: Final answer
    x = 646,993.23

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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.