Home / 814,209.12-1,123,586.91-470,033.43

Finding the Fourth Proportional to 814,209.12, 1,123,586.91 and 470,033.43

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Solution

The fourth proportional to 814,209.12, 1,123,586.91 and 470,033.43 is: 648,633.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,209.12 : 1,123,586.91 = 470,033.43 : x
  2. Step 2: Convert to fraction form
    814,209.12/1,123,586.91 = 470,033.43/x
  3. Step 3: Cross multiply
    814,209.12x = 1,123,586.91 × 470,033.43
  4. Step 4: Simplify right side
    814,209.12x = 528,123,409,210.40
  5. Step 5: Solve for x
    x = 528,123,409,210.40/814,209.12
  6. Step 6: Final answer
    x = 648,633.62

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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.