Home / 1,916,200.40-2,872,988.40-905,806.40

Finding the Fourth Proportional to 1,916,200.40, 2,872,988.40 and 905,806.40

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Solution

The fourth proportional to 1,916,200.40, 2,872,988.40 and 905,806.40 is: 1,358,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,200.40 : 2,872,988.40 = 905,806.40 : x
  2. Step 2: Convert to fraction form
    1,916,200.40/2,872,988.40 = 905,806.40/x
  3. Step 3: Cross multiply
    1,916,200.40x = 2,872,988.40 × 905,806.40
  4. Step 4: Simplify right side
    1,916,200.40x = 2,602,371,279,845.76
  5. Step 5: Solve for x
    x = 2,602,371,279,845.76/1,916,200.40
  6. Step 6: Final answer
    x = 1,358,089.31

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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.