Home / 1,430,501.80-2,147,135.10-870,629.80

Finding the Fourth Proportional to 1,430,501.80, 2,147,135.10 and 870,629.80

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Solution

The fourth proportional to 1,430,501.80, 2,147,135.10 and 870,629.80 is: 1,306,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,501.80 : 2,147,135.10 = 870,629.80 : x
  2. Step 2: Convert to fraction form
    1,430,501.80/2,147,135.10 = 870,629.80/x
  3. Step 3: Cross multiply
    1,430,501.80x = 2,147,135.10 × 870,629.80
  4. Step 4: Simplify right side
    1,430,501.80x = 1,869,359,802,685.98
  5. Step 5: Solve for x
    x = 1,869,359,802,685.98/1,430,501.80
  6. Step 6: Final answer
    x = 1,306,786.05

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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.