Home / 1,176,145.40-1,765,139.70-545,137.40

Finding the Fourth Proportional to 1,176,145.40, 1,765,139.70 and 545,137.40

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Solution

The fourth proportional to 1,176,145.40, 1,765,139.70 and 545,137.40 is: 818,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,145.40 : 1,765,139.70 = 545,137.40 : x
  2. Step 2: Convert to fraction form
    1,176,145.40/1,765,139.70 = 545,137.40/x
  3. Step 3: Cross multiply
    1,176,145.40x = 1,765,139.70 × 545,137.40
  4. Step 4: Simplify right side
    1,176,145.40x = 962,243,666,694.78
  5. Step 5: Solve for x
    x = 962,243,666,694.78/1,176,145.40
  6. Step 6: Final answer
    x = 818,133.26

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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.