Home / 1,377,124.70-2,066,015.10-666,568.40

Finding the Fourth Proportional to 1,377,124.70, 2,066,015.10 and 666,568.40

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Solution

The fourth proportional to 1,377,124.70, 2,066,015.10 and 666,568.40 is: 1,000,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,124.70 : 2,066,015.10 = 666,568.40 : x
  2. Step 2: Convert to fraction form
    1,377,124.70/2,066,015.10 = 666,568.40/x
  3. Step 3: Cross multiply
    1,377,124.70x = 2,066,015.10 × 666,568.40
  4. Step 4: Simplify right side
    1,377,124.70x = 1,377,140,379,582.84
  5. Step 5: Solve for x
    x = 1,377,140,379,582.84/1,377,124.70
  6. Step 6: Final answer
    x = 1,000,011.39

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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.