Home / 1,430,307.56-2,145,428.13-720,144.92

Finding the Fourth Proportional to 1,430,307.56, 2,145,428.13 and 720,144.92

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Solution

The fourth proportional to 1,430,307.56, 2,145,428.13 and 720,144.92 is: 1,080,200.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,307.56 : 2,145,428.13 = 720,144.92 : x
  2. Step 2: Convert to fraction form
    1,430,307.56/2,145,428.13 = 720,144.92/x
  3. Step 3: Cross multiply
    1,430,307.56x = 2,145,428.13 × 720,144.92
  4. Step 4: Simplify right side
    1,430,307.56x = 1,545,019,169,044.60
  5. Step 5: Solve for x
    x = 1,545,019,169,044.60/1,430,307.56
  6. Step 6: Final answer
    x = 1,080,200.66

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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.