Home / 487,566.72-671,438.64-401,896.44

Finding the Fourth Proportional to 487,566.72, 671,438.64 and 401,896.44

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Solution

The fourth proportional to 487,566.72, 671,438.64 and 401,896.44 is: 553,460.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,566.72 : 671,438.64 = 401,896.44 : x
  2. Step 2: Convert to fraction form
    487,566.72/671,438.64 = 401,896.44/x
  3. Step 3: Cross multiply
    487,566.72x = 671,438.64 × 401,896.44
  4. Step 4: Simplify right side
    487,566.72x = 269,848,799,094.44
  5. Step 5: Solve for x
    x = 269,848,799,094.44/487,566.72
  6. Step 6: Final answer
    x = 553,460.25

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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.