Home / 1,259,897.40-1,889,846.10-905,603.40

Finding the Fourth Proportional to 1,259,897.40, 1,889,846.10 and 905,603.40

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Solution

The fourth proportional to 1,259,897.40, 1,889,846.10 and 905,603.40 is: 1,358,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,897.40 : 1,889,846.10 = 905,603.40 : x
  2. Step 2: Convert to fraction form
    1,259,897.40/1,889,846.10 = 905,603.40/x
  3. Step 3: Cross multiply
    1,259,897.40x = 1,889,846.10 × 905,603.40
  4. Step 4: Simplify right side
    1,259,897.40x = 1,711,451,053,636.74
  5. Step 5: Solve for x
    x = 1,711,451,053,636.74/1,259,897.40
  6. Step 6: Final answer
    x = 1,358,405.10

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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.