Home / 463,528.31-639,389.72-272,384.51

Finding the Fourth Proportional to 463,528.31, 639,389.72 and 272,384.51

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Solution

The fourth proportional to 463,528.31, 639,389.72 and 272,384.51 is: 375,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,528.31 : 639,389.72 = 272,384.51 : x
  2. Step 2: Convert to fraction form
    463,528.31/639,389.72 = 272,384.51/x
  3. Step 3: Cross multiply
    463,528.31x = 639,389.72 × 272,384.51
  4. Step 4: Simplify right side
    463,528.31x = 174,159,854,219.32
  5. Step 5: Solve for x
    x = 174,159,854,219.32/463,528.31
  6. Step 6: Final answer
    x = 375,726.47

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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.