Home / 821,854.34-1,134,137.05-459,281.02

Finding the Fourth Proportional to 821,854.34, 1,134,137.05 and 459,281.02

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Solution

The fourth proportional to 821,854.34, 1,134,137.05 and 459,281.02 is: 633,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,854.34 : 1,134,137.05 = 459,281.02 : x
  2. Step 2: Convert to fraction form
    821,854.34/1,134,137.05 = 459,281.02/x
  3. Step 3: Cross multiply
    821,854.34x = 1,134,137.05 × 459,281.02
  4. Step 4: Simplify right side
    821,854.34x = 520,887,621,143.79
  5. Step 5: Solve for x
    x = 520,887,621,143.79/821,854.34
  6. Step 6: Final answer
    x = 633,795.55

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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.