Home / 1,072,916.20-1,609,374.30-899,705.80

Finding the Fourth Proportional to 1,072,916.20, 1,609,374.30 and 899,705.80

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Solution

The fourth proportional to 1,072,916.20, 1,609,374.30 and 899,705.80 is: 1,349,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,916.20 : 1,609,374.30 = 899,705.80 : x
  2. Step 2: Convert to fraction form
    1,072,916.20/1,609,374.30 = 899,705.80/x
  3. Step 3: Cross multiply
    1,072,916.20x = 1,609,374.30 × 899,705.80
  4. Step 4: Simplify right side
    1,072,916.20x = 1,447,963,392,080.94
  5. Step 5: Solve for x
    x = 1,447,963,392,080.94/1,072,916.20
  6. Step 6: Final answer
    x = 1,349,558.70

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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.