Home / 855,607.70-1,283,411.55-814,135.70

Finding the Fourth Proportional to 855,607.70, 1,283,411.55 and 814,135.70

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Solution

The fourth proportional to 855,607.70, 1,283,411.55 and 814,135.70 is: 1,221,203.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,607.70 : 1,283,411.55 = 814,135.70 : x
  2. Step 2: Convert to fraction form
    855,607.70/1,283,411.55 = 814,135.70/x
  3. Step 3: Cross multiply
    855,607.70x = 1,283,411.55 × 814,135.70
  4. Step 4: Simplify right side
    855,607.70x = 1,044,871,160,647.34
  5. Step 5: Solve for x
    x = 1,044,871,160,647.34/855,607.70
  6. Step 6: Final answer
    x = 1,221,203.55

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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.