Home / 1,584,985.79-2,187,280.40-905,936.87

Finding the Fourth Proportional to 1,584,985.79, 2,187,280.40 and 905,936.87

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Solution

The fourth proportional to 1,584,985.79, 2,187,280.40 and 905,936.87 is: 1,250,192.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584,985.79 : 2,187,280.40 = 905,936.87 : x
  2. Step 2: Convert to fraction form
    1,584,985.79/2,187,280.40 = 905,936.87/x
  3. Step 3: Cross multiply
    1,584,985.79x = 2,187,280.40 × 905,936.87
  4. Step 4: Simplify right side
    1,584,985.79x = 1,981,537,960,326.86
  5. Step 5: Solve for x
    x = 1,981,537,960,326.86/1,584,985.79
  6. Step 6: Final answer
    x = 1,250,192.88

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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.