Home / 1,395,938.70-2,093,908.05-917,641.80

Finding the Fourth Proportional to 1,395,938.70, 2,093,908.05 and 917,641.80

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Solution

The fourth proportional to 1,395,938.70, 2,093,908.05 and 917,641.80 is: 1,376,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,938.70 : 2,093,908.05 = 917,641.80 : x
  2. Step 2: Convert to fraction form
    1,395,938.70/2,093,908.05 = 917,641.80/x
  3. Step 3: Cross multiply
    1,395,938.70x = 2,093,908.05 × 917,641.80
  4. Step 4: Simplify right side
    1,395,938.70x = 1,921,457,552,036.49
  5. Step 5: Solve for x
    x = 1,921,457,552,036.49/1,395,938.70
  6. Step 6: Final answer
    x = 1,376,462.70

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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.