Home / 837,420.84-1,155,607.56-455,447.52

Finding the Fourth Proportional to 837,420.84, 1,155,607.56 and 455,447.52

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Solution

The fourth proportional to 837,420.84, 1,155,607.56 and 455,447.52 is: 628,499.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,420.84 : 1,155,607.56 = 455,447.52 : x
  2. Step 2: Convert to fraction form
    837,420.84/1,155,607.56 = 455,447.52/x
  3. Step 3: Cross multiply
    837,420.84x = 1,155,607.56 × 455,447.52
  4. Step 4: Simplify right side
    837,420.84x = 526,318,597,295.25
  5. Step 5: Solve for x
    x = 526,318,597,295.25/837,420.84
  6. Step 6: Final answer
    x = 628,499.52

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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.