Home / 885,443.40-1,328,337.90-380,003.40

Finding the Fourth Proportional to 885,443.40, 1,328,337.90 and 380,003.40

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Solution

The fourth proportional to 885,443.40, 1,328,337.90 and 380,003.40 is: 570,079.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,443.40 : 1,328,337.90 = 380,003.40 : x
  2. Step 2: Convert to fraction form
    885,443.40/1,328,337.90 = 380,003.40/x
  3. Step 3: Cross multiply
    885,443.40x = 1,328,337.90 × 380,003.40
  4. Step 4: Simplify right side
    885,443.40x = 504,772,918,348.86
  5. Step 5: Solve for x
    x = 504,772,918,348.86/885,443.40
  6. Step 6: Final answer
    x = 570,079.26

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1.5x scale

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.