Home / 820,779.72-1,132,733.07-458,274.84

Finding the Fourth Proportional to 820,779.72, 1,132,733.07 and 458,274.84

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Solution

The fourth proportional to 820,779.72, 1,132,733.07 and 458,274.84 is: 632,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,779.72 : 1,132,733.07 = 458,274.84 : x
  2. Step 2: Convert to fraction form
    820,779.72/1,132,733.07 = 458,274.84/x
  3. Step 3: Cross multiply
    820,779.72x = 1,132,733.07 × 458,274.84
  4. Step 4: Simplify right side
    820,779.72x = 519,103,066,416.96
  5. Step 5: Solve for x
    x = 519,103,066,416.96/820,779.72
  6. Step 6: Final answer
    x = 632,451.14

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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.