Home / 505,013.04-696,980.16-290,152.80

Finding the Fourth Proportional to 505,013.04, 696,980.16 and 290,152.80

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Solution

The fourth proportional to 505,013.04, 696,980.16 and 290,152.80 is: 400,446.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,013.04 : 696,980.16 = 290,152.80 : x
  2. Step 2: Convert to fraction form
    505,013.04/696,980.16 = 290,152.80/x
  3. Step 3: Cross multiply
    505,013.04x = 696,980.16 × 290,152.80
  4. Step 4: Simplify right side
    505,013.04x = 202,230,744,968.45
  5. Step 5: Solve for x
    x = 202,230,744,968.45/505,013.04
  6. Step 6: Final answer
    x = 400,446.58

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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.