Home / 1,430,136.64-1,971,971.22-913,210.84

Finding the Fourth Proportional to 1,430,136.64, 1,971,971.22 and 913,210.84

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Solution

The fourth proportional to 1,430,136.64, 1,971,971.22 and 913,210.84 is: 1,259,198.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,136.64 : 1,971,971.22 = 913,210.84 : x
  2. Step 2: Convert to fraction form
    1,430,136.64/1,971,971.22 = 913,210.84/x
  3. Step 3: Cross multiply
    1,430,136.64x = 1,971,971.22 × 913,210.84
  4. Step 4: Simplify right side
    1,430,136.64x = 1,800,825,494,272.02
  5. Step 5: Solve for x
    x = 1,800,825,494,272.02/1,430,136.64
  6. Step 6: Final answer
    x = 1,259,198.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.