Home / 857,957.46-1,183,980.84-470,775.43

Finding the Fourth Proportional to 857,957.46, 1,183,980.84 and 470,775.43

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Solution

The fourth proportional to 857,957.46, 1,183,980.84 and 470,775.43 is: 649,669.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,957.46 : 1,183,980.84 = 470,775.43 : x
  2. Step 2: Convert to fraction form
    857,957.46/1,183,980.84 = 470,775.43/x
  3. Step 3: Cross multiply
    857,957.46x = 1,183,980.84 × 470,775.43
  4. Step 4: Simplify right side
    857,957.46x = 557,389,089,062.76
  5. Step 5: Solve for x
    x = 557,389,089,062.76/857,957.46
  6. Step 6: Final answer
    x = 649,669.84

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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.