Home / 1,123,861.70-1,685,792.55-745,948.10

Finding the Fourth Proportional to 1,123,861.70, 1,685,792.55 and 745,948.10

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Solution

The fourth proportional to 1,123,861.70, 1,685,792.55 and 745,948.10 is: 1,118,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,861.70 : 1,685,792.55 = 745,948.10 : x
  2. Step 2: Convert to fraction form
    1,123,861.70/1,685,792.55 = 745,948.10/x
  3. Step 3: Cross multiply
    1,123,861.70x = 1,685,792.55 × 745,948.10
  4. Step 4: Simplify right side
    1,123,861.70x = 1,257,513,749,666.66
  5. Step 5: Solve for x
    x = 1,257,513,749,666.66/1,123,861.70
  6. Step 6: Final answer
    x = 1,118,922.15

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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.