Home / 1,371,823.70-1,893,431.70-912,957.68

Finding the Fourth Proportional to 1,371,823.70, 1,893,431.70 and 912,957.68

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Solution

The fourth proportional to 1,371,823.70, 1,893,431.70 and 912,957.68 is: 1,260,091.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,371,823.70 : 1,893,431.70 = 912,957.68 : x
  2. Step 2: Convert to fraction form
    1,371,823.70/1,893,431.70 = 912,957.68/x
  3. Step 3: Cross multiply
    1,371,823.70x = 1,893,431.70 × 912,957.68
  4. Step 4: Simplify right side
    1,371,823.70x = 1,728,623,016,804.04
  5. Step 5: Solve for x
    x = 1,728,623,016,804.04/1,371,823.70
  6. Step 6: Final answer
    x = 1,260,091.24

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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.