Home / 450,625.02-621,871.47-278,568.06

Finding the Fourth Proportional to 450,625.02, 621,871.47 and 278,568.06

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Solution

The fourth proportional to 450,625.02, 621,871.47 and 278,568.06 is: 384,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,625.02 : 621,871.47 = 278,568.06 : x
  2. Step 2: Convert to fraction form
    450,625.02/621,871.47 = 278,568.06/x
  3. Step 3: Cross multiply
    450,625.02x = 621,871.47 × 278,568.06
  4. Step 4: Simplify right side
    450,625.02x = 173,233,528,967.25
  5. Step 5: Solve for x
    x = 173,233,528,967.25/450,625.02
  6. Step 6: Final answer
    x = 384,429.45

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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.