Home / 1,214,905.80-1,822,358.70-540,985.80

Finding the Fourth Proportional to 1,214,905.80, 1,822,358.70 and 540,985.80

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Solution

The fourth proportional to 1,214,905.80, 1,822,358.70 and 540,985.80 is: 811,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,905.80 : 1,822,358.70 = 540,985.80 : x
  2. Step 2: Convert to fraction form
    1,214,905.80/1,822,358.70 = 540,985.80/x
  3. Step 3: Cross multiply
    1,214,905.80x = 1,822,358.70 × 540,985.80
  4. Step 4: Simplify right side
    1,214,905.80x = 985,870,179,206.46
  5. Step 5: Solve for x
    x = 985,870,179,206.46/1,214,905.80
  6. Step 6: Final answer
    x = 811,478.70

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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.