Home / 1,430,306.56-2,145,426.63-720,143.92

Finding the Fourth Proportional to 1,430,306.56, 2,145,426.63 and 720,143.92

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Solution

The fourth proportional to 1,430,306.56, 2,145,426.63 and 720,143.92 is: 1,080,199.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,306.56 : 2,145,426.63 = 720,143.92 : x
  2. Step 2: Convert to fraction form
    1,430,306.56/2,145,426.63 = 720,143.92/x
  3. Step 3: Cross multiply
    1,430,306.56x = 2,145,426.63 × 720,143.92
  4. Step 4: Simplify right side
    1,430,306.56x = 1,545,015,943,400.59
  5. Step 5: Solve for x
    x = 1,545,015,943,400.59/1,430,306.56
  6. Step 6: Final answer
    x = 1,080,199.16

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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.