Home / 1,377,820.40-2,066,022.32-619,011.60

Finding the Fourth Proportional to 1,377,820.40, 2,066,022.32 and 619,011.60

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Solution

The fourth proportional to 1,377,820.40, 2,066,022.32 and 619,011.60 is: 928,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,820.40 : 2,066,022.32 = 619,011.60 : x
  2. Step 2: Convert to fraction form
    1,377,820.40/2,066,022.32 = 619,011.60/x
  3. Step 3: Cross multiply
    1,377,820.40x = 2,066,022.32 × 619,011.60
  4. Step 4: Simplify right side
    1,377,820.40x = 1,278,891,781,938.91
  5. Step 5: Solve for x
    x = 1,278,891,781,938.91/1,377,820.40
  6. Step 6: Final answer
    x = 928,199.19

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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.