Home / 1,549,811.87-2,138,645.90-870,792.11

Finding the Fourth Proportional to 1,549,811.87, 2,138,645.90 and 870,792.11

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Solution

The fourth proportional to 1,549,811.87, 2,138,645.90 and 870,792.11 is: 1,201,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,811.87 : 2,138,645.90 = 870,792.11 : x
  2. Step 2: Convert to fraction form
    1,549,811.87/2,138,645.90 = 870,792.11/x
  3. Step 3: Cross multiply
    1,549,811.87x = 2,138,645.90 × 870,792.11
  4. Step 4: Simplify right side
    1,549,811.87x = 1,862,315,975,803.85
  5. Step 5: Solve for x
    x = 1,862,315,975,803.85/1,549,811.87
  6. Step 6: Final answer
    x = 1,201,640.03

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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.