Home / 1,528,234.86-2,109,011.57-839,894.21

Finding the Fourth Proportional to 1,528,234.86, 2,109,011.57 and 839,894.21

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Solution

The fourth proportional to 1,528,234.86, 2,109,011.57 and 839,894.21 is: 1,159,080.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,234.86 : 2,109,011.57 = 839,894.21 : x
  2. Step 2: Convert to fraction form
    1,528,234.86/2,109,011.57 = 839,894.21/x
  3. Step 3: Cross multiply
    1,528,234.86x = 2,109,011.57 × 839,894.21
  4. Step 4: Simplify right side
    1,528,234.86x = 1,771,346,598,020.69
  5. Step 5: Solve for x
    x = 1,771,346,598,020.69/1,528,234.86
  6. Step 6: Final answer
    x = 1,159,080.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.