Home / 619,669.03-929,484.10-340,938.31

Finding the Fourth Proportional to 619,669.03, 929,484.10 and 340,938.31

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Solution

The fourth proportional to 619,669.03, 929,484.10 and 340,938.31 is: 511,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,669.03 : 929,484.10 = 340,938.31 : x
  2. Step 2: Convert to fraction form
    619,669.03/929,484.10 = 340,938.31/x
  3. Step 3: Cross multiply
    619,669.03x = 929,484.10 × 340,938.31
  4. Step 4: Simplify right side
    619,669.03x = 316,896,738,225.87
  5. Step 5: Solve for x
    x = 316,896,738,225.87/619,669.03
  6. Step 6: Final answer
    x = 511,396.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.