Home / 572,767.20-790,419.60-318,111.84

Finding the Fourth Proportional to 572,767.20, 790,419.60 and 318,111.84

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Solution

The fourth proportional to 572,767.20, 790,419.60 and 318,111.84 is: 438,994.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,767.20 : 790,419.60 = 318,111.84 : x
  2. Step 2: Convert to fraction form
    572,767.20/790,419.60 = 318,111.84/x
  3. Step 3: Cross multiply
    572,767.20x = 790,419.60 × 318,111.84
  4. Step 4: Simplify right side
    572,767.20x = 251,441,833,328.06
  5. Step 5: Solve for x
    x = 251,441,833,328.06/572,767.20
  6. Step 6: Final answer
    x = 438,994.82

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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.