Home / 389,897.07-584,029.75-313,583.16

Finding the Fourth Proportional to 389,897.07, 584,029.75 and 313,583.16

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Solution

The fourth proportional to 389,897.07, 584,029.75 and 313,583.16 is: 469,718.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,897.07 : 584,029.75 = 313,583.16 : x
  2. Step 2: Convert to fraction form
    389,897.07/584,029.75 = 313,583.16/x
  3. Step 3: Cross multiply
    389,897.07x = 584,029.75 × 313,583.16
  4. Step 4: Simplify right side
    389,897.07x = 183,141,893,247.97
  5. Step 5: Solve for x
    x = 183,141,893,247.97/389,897.07
  6. Step 6: Final answer
    x = 469,718.57

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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.