Home / 382,969.20-528,320.14-247,047

Finding the Fourth Proportional to 382,969.20, 528,320.14 and 247,047

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Solution

The fourth proportional to 382,969.20, 528,320.14 and 247,047 is: 340,810.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,969.20 : 528,320.14 = 247,047 : x
  2. Step 2: Convert to fraction form
    382,969.20/528,320.14 = 247,047/x
  3. Step 3: Cross multiply
    382,969.20x = 528,320.14 × 247,047
  4. Step 4: Simplify right side
    382,969.20x = 130,519,905,626.58
  5. Step 5: Solve for x
    x = 130,519,905,626.58/382,969.20
  6. Step 6: Final answer
    x = 340,810.45

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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.