Home / 1,152,432.20-1,728,634.40-299,428.37

Finding the Fourth Proportional to 1,152,432.20, 1,728,634.40 and 299,428.37

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Solution

The fourth proportional to 1,152,432.20, 1,728,634.40 and 299,428.37 is: 449,138.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,432.20 : 1,728,634.40 = 299,428.37 : x
  2. Step 2: Convert to fraction form
    1,152,432.20/1,728,634.40 = 299,428.37/x
  3. Step 3: Cross multiply
    1,152,432.20x = 1,728,634.40 × 299,428.37
  4. Step 4: Simplify right side
    1,152,432.20x = 517,602,179,220.79
  5. Step 5: Solve for x
    x = 517,602,179,220.79/1,152,432.20
  6. Step 6: Final answer
    x = 449,138.94

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1.5x scale

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.