Home / 855,575.95-1,180,800.34-488,143.55

Finding the Fourth Proportional to 855,575.95, 1,180,800.34 and 488,143.55

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Solution

The fourth proportional to 855,575.95, 1,180,800.34 and 488,143.55 is: 673,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,575.95 : 1,180,800.34 = 488,143.55 : x
  2. Step 2: Convert to fraction form
    855,575.95/1,180,800.34 = 488,143.55/x
  3. Step 3: Cross multiply
    855,575.95x = 1,180,800.34 × 488,143.55
  4. Step 4: Simplify right side
    855,575.95x = 576,400,069,808.81
  5. Step 5: Solve for x
    x = 576,400,069,808.81/855,575.95
  6. Step 6: Final answer
    x = 673,698.31

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1.5x scale

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.