Home / 450,013.02-621,039.51-248,821.98

Finding the Fourth Proportional to 450,013.02, 621,039.51 and 248,821.98

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Solution

The fourth proportional to 450,013.02, 621,039.51 and 248,821.98 is: 343,386.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,013.02 : 621,039.51 = 248,821.98 : x
  2. Step 2: Convert to fraction form
    450,013.02/621,039.51 = 248,821.98/x
  3. Step 3: Cross multiply
    450,013.02x = 621,039.51 × 248,821.98
  4. Step 4: Simplify right side
    450,013.02x = 154,528,280,536.43
  5. Step 5: Solve for x
    x = 154,528,280,536.43/450,013.02
  6. Step 6: Final answer
    x = 343,386.24

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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.