Home / 1,243,639.60-1,865,459.40-444,947.20

Finding the Fourth Proportional to 1,243,639.60, 1,865,459.40 and 444,947.20

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Solution

The fourth proportional to 1,243,639.60, 1,865,459.40 and 444,947.20 is: 667,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,639.60 : 1,865,459.40 = 444,947.20 : x
  2. Step 2: Convert to fraction form
    1,243,639.60/1,865,459.40 = 444,947.20/x
  3. Step 3: Cross multiply
    1,243,639.60x = 1,865,459.40 × 444,947.20
  4. Step 4: Simplify right side
    1,243,639.60x = 830,030,936,743.68
  5. Step 5: Solve for x
    x = 830,030,936,743.68/1,243,639.60
  6. Step 6: Final answer
    x = 667,420.80

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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.