Home / 1,478,246.10-2,217,369.15-638,438.10

Finding the Fourth Proportional to 1,478,246.10, 2,217,369.15 and 638,438.10

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Solution

The fourth proportional to 1,478,246.10, 2,217,369.15 and 638,438.10 is: 957,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,246.10 : 2,217,369.15 = 638,438.10 : x
  2. Step 2: Convert to fraction form
    1,478,246.10/2,217,369.15 = 638,438.10/x
  3. Step 3: Cross multiply
    1,478,246.10x = 2,217,369.15 × 638,438.10
  4. Step 4: Simplify right side
    1,478,246.10x = 1,415,652,947,124.62
  5. Step 5: Solve for x
    x = 1,415,652,947,124.62/1,478,246.10
  6. Step 6: Final answer
    x = 957,657.15

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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.