Home / 885,435.92-1,221,748.98-498,197.60

Finding the Fourth Proportional to 885,435.92, 1,221,748.98 and 498,197.60

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Solution

The fourth proportional to 885,435.92, 1,221,748.98 and 498,197.60 is: 687,426.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,435.92 : 1,221,748.98 = 498,197.60 : x
  2. Step 2: Convert to fraction form
    885,435.92/1,221,748.98 = 498,197.60/x
  3. Step 3: Cross multiply
    885,435.92x = 1,221,748.98 × 498,197.60
  4. Step 4: Simplify right side
    885,435.92x = 608,672,409,638.45
  5. Step 5: Solve for x
    x = 608,672,409,638.45/885,435.92
  6. Step 6: Final answer
    x = 687,426.83

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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.