Home / 497,840.50-687,071.73-306,848.98

Finding the Fourth Proportional to 497,840.50, 687,071.73 and 306,848.98

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Solution

The fourth proportional to 497,840.50, 687,071.73 and 306,848.98 is: 423,483.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,840.50 : 687,071.73 = 306,848.98 : x
  2. Step 2: Convert to fraction form
    497,840.50/687,071.73 = 306,848.98/x
  3. Step 3: Cross multiply
    497,840.50x = 687,071.73 × 306,848.98
  4. Step 4: Simplify right side
    497,840.50x = 210,827,259,537.34
  5. Step 5: Solve for x
    x = 210,827,259,537.34/497,840.50
  6. Step 6: Final answer
    x = 423,483.54

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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.