Home / 1,077,811.80-1,617,300.90-478,865.40

Finding the Fourth Proportional to 1,077,811.80, 1,617,300.90 and 478,865.40

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Solution

The fourth proportional to 1,077,811.80, 1,617,300.90 and 478,865.40 is: 718,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,811.80 : 1,617,300.90 = 478,865.40 : x
  2. Step 2: Convert to fraction form
    1,077,811.80/1,617,300.90 = 478,865.40/x
  3. Step 3: Cross multiply
    1,077,811.80x = 1,617,300.90 × 478,865.40
  4. Step 4: Simplify right side
    1,077,811.80x = 774,469,442,398.86
  5. Step 5: Solve for x
    x = 774,469,442,398.86/1,077,811.80
  6. Step 6: Final answer
    x = 718,557.21

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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.