Home / 1,210,929-1,671,133.86-674,385

Finding the Fourth Proportional to 1,210,929, 1,671,133.86 and 674,385

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Solution

The fourth proportional to 1,210,929, 1,671,133.86 and 674,385 is: 930,680.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,929 : 1,671,133.86 = 674,385 : x
  2. Step 2: Convert to fraction form
    1,210,929/1,671,133.86 = 674,385/x
  3. Step 3: Cross multiply
    1,210,929x = 1,671,133.86 × 674,385
  4. Step 4: Simplify right side
    1,210,929x = 1,126,987,608,176.10
  5. Step 5: Solve for x
    x = 1,126,987,608,176.10/1,210,929
  6. Step 6: Final answer
    x = 930,680.17

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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.