Home / 457,021.07-630,688.67-253,071.98

Finding the Fourth Proportional to 457,021.07, 630,688.67 and 253,071.98

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Solution

The fourth proportional to 457,021.07, 630,688.67 and 253,071.98 is: 349,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,021.07 : 630,688.67 = 253,071.98 : x
  2. Step 2: Convert to fraction form
    457,021.07/630,688.67 = 253,071.98/x
  3. Step 3: Cross multiply
    457,021.07x = 630,688.67 × 253,071.98
  4. Step 4: Simplify right side
    457,021.07x = 159,609,629,375.77
  5. Step 5: Solve for x
    x = 159,609,629,375.77/457,021.07
  6. Step 6: Final answer
    x = 349,239.11

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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.