Home / 1,663,428.35-2,295,544.85-918,378.20

Finding the Fourth Proportional to 1,663,428.35, 2,295,544.85 and 918,378.20

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Solution

The fourth proportional to 1,663,428.35, 2,295,544.85 and 918,378.20 is: 1,267,369.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,663,428.35 : 2,295,544.85 = 918,378.20 : x
  2. Step 2: Convert to fraction form
    1,663,428.35/2,295,544.85 = 918,378.20/x
  3. Step 3: Cross multiply
    1,663,428.35x = 2,295,544.85 × 918,378.20
  4. Step 4: Simplify right side
    1,663,428.35x = 2,108,178,347,362.27
  5. Step 5: Solve for x
    x = 2,108,178,347,362.27/1,663,428.35
  6. Step 6: Final answer
    x = 1,267,369.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.