Home / 1,486,509.40-2,052,234.18-978,688

Finding the Fourth Proportional to 1,486,509.40, 2,052,234.18 and 978,688

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Solution

The fourth proportional to 1,486,509.40, 2,052,234.18 and 978,688 is: 1,351,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,509.40 : 2,052,234.18 = 978,688 : x
  2. Step 2: Convert to fraction form
    1,486,509.40/2,052,234.18 = 978,688/x
  3. Step 3: Cross multiply
    1,486,509.40x = 2,052,234.18 × 978,688
  4. Step 4: Simplify right side
    1,486,509.40x = 2,008,496,965,155.84
  5. Step 5: Solve for x
    x = 2,008,496,965,155.84/1,486,509.40
  6. Step 6: Final answer
    x = 1,351,149.86

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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.