Home / 818,435.18-1,129,497.32-496,158.86

Finding the Fourth Proportional to 818,435.18, 1,129,497.32 and 496,158.86

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Solution

The fourth proportional to 818,435.18, 1,129,497.32 and 496,158.86 is: 684,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,435.18 : 1,129,497.32 = 496,158.86 : x
  2. Step 2: Convert to fraction form
    818,435.18/1,129,497.32 = 496,158.86/x
  3. Step 3: Cross multiply
    818,435.18x = 1,129,497.32 × 496,158.86
  4. Step 4: Simplify right side
    818,435.18x = 560,410,102,664.26
  5. Step 5: Solve for x
    x = 560,410,102,664.26/818,435.18
  6. Step 6: Final answer
    x = 684,733.64

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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.