Home / 1,214,631.60-1,821,947.40-426,663.60

Finding the Fourth Proportional to 1,214,631.60, 1,821,947.40 and 426,663.60

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Solution

The fourth proportional to 1,214,631.60, 1,821,947.40 and 426,663.60 is: 639,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,631.60 : 1,821,947.40 = 426,663.60 : x
  2. Step 2: Convert to fraction form
    1,214,631.60/1,821,947.40 = 426,663.60/x
  3. Step 3: Cross multiply
    1,214,631.60x = 1,821,947.40 × 426,663.60
  4. Step 4: Simplify right side
    1,214,631.60x = 777,358,636,694.64
  5. Step 5: Solve for x
    x = 777,358,636,694.64/1,214,631.60
  6. Step 6: Final answer
    x = 639,995.40

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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.