Home / 572,721.63-790,355.84-318,096.51

Finding the Fourth Proportional to 572,721.63, 790,355.84 and 318,096.51

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Solution

The fourth proportional to 572,721.63, 790,355.84 and 318,096.51 is: 438,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,721.63 : 790,355.84 = 318,096.51 : x
  2. Step 2: Convert to fraction form
    572,721.63/790,355.84 = 318,096.51/x
  3. Step 3: Cross multiply
    572,721.63x = 790,355.84 × 318,096.51
  4. Step 4: Simplify right side
    572,721.63x = 251,409,434,362.12
  5. Step 5: Solve for x
    x = 251,409,434,362.12/572,721.63
  6. Step 6: Final answer
    x = 438,973.18

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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.