Home / 1,554,953.50-2,145,102.16-909,974.40

Finding the Fourth Proportional to 1,554,953.50, 2,145,102.16 and 909,974.40

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Solution

The fourth proportional to 1,554,953.50, 2,145,102.16 and 909,974.40 is: 1,255,335.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,554,953.50 : 2,145,102.16 = 909,974.40 : x
  2. Step 2: Convert to fraction form
    1,554,953.50/2,145,102.16 = 909,974.40/x
  3. Step 3: Cross multiply
    1,554,953.50x = 2,145,102.16 × 909,974.40
  4. Step 4: Simplify right side
    1,554,953.50x = 1,951,988,050,984.70
  5. Step 5: Solve for x
    x = 1,951,988,050,984.70/1,554,953.50
  6. Step 6: Final answer
    x = 1,255,335.32

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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.