Home / 1,430,221.80-2,145,332.70-756,042.60

Finding the Fourth Proportional to 1,430,221.80, 2,145,332.70 and 756,042.60

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Solution

The fourth proportional to 1,430,221.80, 2,145,332.70 and 756,042.60 is: 1,134,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,221.80 : 2,145,332.70 = 756,042.60 : x
  2. Step 2: Convert to fraction form
    1,430,221.80/2,145,332.70 = 756,042.60/x
  3. Step 3: Cross multiply
    1,430,221.80x = 2,145,332.70 × 756,042.60
  4. Step 4: Simplify right side
    1,430,221.80x = 1,621,962,912,373.02
  5. Step 5: Solve for x
    x = 1,621,962,912,373.02/1,430,221.80
  6. Step 6: Final answer
    x = 1,134,063.90

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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.