Home / 818,543.77-1,227,758.46-306,111.39

Finding the Fourth Proportional to 818,543.77, 1,227,758.46 and 306,111.39

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Solution

The fourth proportional to 818,543.77, 1,227,758.46 and 306,111.39 is: 459,145.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,543.77 : 1,227,758.46 = 306,111.39 : x
  2. Step 2: Convert to fraction form
    818,543.77/1,227,758.46 = 306,111.39/x
  3. Step 3: Cross multiply
    818,543.77x = 1,227,758.46 × 306,111.39
  4. Step 4: Simplify right side
    818,543.77x = 375,830,848,774.86
  5. Step 5: Solve for x
    x = 375,830,848,774.86/818,543.77
  6. Step 6: Final answer
    x = 459,145.70

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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.