Home / 454,048.02-681,072.89-426,303.06

Finding the Fourth Proportional to 454,048.02, 681,072.89 and 426,303.06

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Solution

The fourth proportional to 454,048.02, 681,072.89 and 426,303.06 is: 639,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,048.02 : 681,072.89 = 426,303.06 : x
  2. Step 2: Convert to fraction form
    454,048.02/681,072.89 = 426,303.06/x
  3. Step 3: Cross multiply
    454,048.02x = 681,072.89 × 426,303.06
  4. Step 4: Simplify right side
    454,048.02x = 290,343,460,709.82
  5. Step 5: Solve for x
    x = 290,343,460,709.82/454,048.02
  6. Step 6: Final answer
    x = 639,455.41

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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.