Home / 1,377,981.81-2,066,512.82-579,114.45

Finding the Fourth Proportional to 1,377,981.81, 2,066,512.82 and 579,114.45

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Solution

The fourth proportional to 1,377,981.81, 2,066,512.82 and 579,114.45 is: 868,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,981.81 : 2,066,512.82 = 579,114.45 : x
  2. Step 2: Convert to fraction form
    1,377,981.81/2,066,512.82 = 579,114.45/x
  3. Step 3: Cross multiply
    1,377,981.81x = 2,066,512.82 × 579,114.45
  4. Step 4: Simplify right side
    1,377,981.81x = 1,196,747,432,276.68
  5. Step 5: Solve for x
    x = 1,196,747,432,276.68/1,377,981.81
  6. Step 6: Final answer
    x = 868,478.40

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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.