Home / 1,355,511.40-2,031,944.70-645,348.52

Finding the Fourth Proportional to 1,355,511.40, 2,031,944.70 and 645,348.52

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Solution

The fourth proportional to 1,355,511.40, 2,031,944.70 and 645,348.52 is: 967,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,511.40 : 2,031,944.70 = 645,348.52 : x
  2. Step 2: Convert to fraction form
    1,355,511.40/2,031,944.70 = 645,348.52/x
  3. Step 3: Cross multiply
    1,355,511.40x = 2,031,944.70 × 645,348.52
  4. Step 4: Simplify right side
    1,355,511.40x = 1,311,312,504,866.84
  5. Step 5: Solve for x
    x = 1,311,312,504,866.84/1,355,511.40
  6. Step 6: Final answer
    x = 967,393.20

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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.