Home / 646,040.21-891,526.50-359,560.35

Finding the Fourth Proportional to 646,040.21, 891,526.50 and 359,560.35

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Solution

The fourth proportional to 646,040.21, 891,526.50 and 359,560.35 is: 496,188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,040.21 : 891,526.50 = 359,560.35 : x
  2. Step 2: Convert to fraction form
    646,040.21/891,526.50 = 359,560.35/x
  3. Step 3: Cross multiply
    646,040.21x = 891,526.50 × 359,560.35
  4. Step 4: Simplify right side
    646,040.21x = 320,557,580,374.28
  5. Step 5: Solve for x
    x = 320,557,580,374.28/646,040.21
  6. Step 6: Final answer
    x = 496,188.28

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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.