Home / 818,961.89-1,130,152.05-456,377.76

Finding the Fourth Proportional to 818,961.89, 1,130,152.05 and 456,377.76

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Solution

The fourth proportional to 818,961.89, 1,130,152.05 and 456,377.76 is: 629,792.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,961.89 : 1,130,152.05 = 456,377.76 : x
  2. Step 2: Convert to fraction form
    818,961.89/1,130,152.05 = 456,377.76/x
  3. Step 3: Cross multiply
    818,961.89x = 1,130,152.05 × 456,377.76
  4. Step 4: Simplify right side
    818,961.89x = 515,776,261,038.41
  5. Step 5: Solve for x
    x = 515,776,261,038.41/818,961.89
  6. Step 6: Final answer
    x = 629,792.75

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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.