Home / 785,983.50-1,084,657.23-428,287.50

Finding the Fourth Proportional to 785,983.50, 1,084,657.23 and 428,287.50

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Solution

The fourth proportional to 785,983.50, 1,084,657.23 and 428,287.50 is: 591,036.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,983.50 : 1,084,657.23 = 428,287.50 : x
  2. Step 2: Convert to fraction form
    785,983.50/1,084,657.23 = 428,287.50/x
  3. Step 3: Cross multiply
    785,983.50x = 1,084,657.23 × 428,287.50
  4. Step 4: Simplify right side
    785,983.50x = 464,545,133,393.63
  5. Step 5: Solve for x
    x = 464,545,133,393.63/785,983.50
  6. Step 6: Final answer
    x = 591,036.75

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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.