Home / 1,123,807.80-1,685,711.70-745,894.20

Finding the Fourth Proportional to 1,123,807.80, 1,685,711.70 and 745,894.20

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Solution

The fourth proportional to 1,123,807.80, 1,685,711.70 and 745,894.20 is: 1,118,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,807.80 : 1,685,711.70 = 745,894.20 : x
  2. Step 2: Convert to fraction form
    1,123,807.80/1,685,711.70 = 745,894.20/x
  3. Step 3: Cross multiply
    1,123,807.80x = 1,685,711.70 × 745,894.20
  4. Step 4: Simplify right side
    1,123,807.80x = 1,257,362,579,902.14
  5. Step 5: Solve for x
    x = 1,257,362,579,902.14/1,123,807.80
  6. Step 6: Final answer
    x = 1,118,841.30

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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.