Home / 822,422.40-1,134,890.40-459,876.12

Finding the Fourth Proportional to 822,422.40, 1,134,890.40 and 459,876.12

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Solution

The fourth proportional to 822,422.40, 1,134,890.40 and 459,876.12 is: 634,599.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,422.40 : 1,134,890.40 = 459,876.12 : x
  2. Step 2: Convert to fraction form
    822,422.40/1,134,890.40 = 459,876.12/x
  3. Step 3: Cross multiply
    822,422.40x = 1,134,890.40 × 459,876.12
  4. Step 4: Simplify right side
    822,422.40x = 521,908,993,777.25
  5. Step 5: Solve for x
    x = 521,908,993,777.25/822,422.40
  6. Step 6: Final answer
    x = 634,599.68

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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.