Home / 919,335.48-1,379,003.22-288,298.50

Finding the Fourth Proportional to 919,335.48, 1,379,003.22 and 288,298.50

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Solution

The fourth proportional to 919,335.48, 1,379,003.22 and 288,298.50 is: 432,447.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,335.48 : 1,379,003.22 = 288,298.50 : x
  2. Step 2: Convert to fraction form
    919,335.48/1,379,003.22 = 288,298.50/x
  3. Step 3: Cross multiply
    919,335.48x = 1,379,003.22 × 288,298.50
  4. Step 4: Simplify right side
    919,335.48x = 397,564,559,821.17
  5. Step 5: Solve for x
    x = 397,564,559,821.17/919,335.48
  6. Step 6: Final answer
    x = 432,447.75

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Similar ratio
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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.