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Finding the Fourth Proportional to 1,425,339.05, 1,966,222.15 and 881,300.93

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Solution

The fourth proportional to 1,425,339.05, 1,966,222.15 and 881,300.93 is: 1,215,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,339.05 : 1,966,222.15 = 881,300.93 : x
  2. Step 2: Convert to fraction form
    1,425,339.05/1,966,222.15 = 881,300.93/x
  3. Step 3: Cross multiply
    1,425,339.05x = 1,966,222.15 × 881,300.93
  4. Step 4: Simplify right side
    1,425,339.05x = 1,732,833,397,347.24
  5. Step 5: Solve for x
    x = 1,732,833,397,347.24/1,425,339.05
  6. Step 6: Final answer
    x = 1,215,734.18

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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.