Home / 857,948.49-1,183,984.56-470,783.88

Finding the Fourth Proportional to 857,948.49, 1,183,984.56 and 470,783.88

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Solution

The fourth proportional to 857,948.49, 1,183,984.56 and 470,783.88 is: 649,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,948.49 : 1,183,984.56 = 470,783.88 : x
  2. Step 2: Convert to fraction form
    857,948.49/1,183,984.56 = 470,783.88/x
  3. Step 3: Cross multiply
    857,948.49x = 1,183,984.56 × 470,783.88
  4. Step 4: Simplify right side
    857,948.49x = 557,400,845,016.89
  5. Step 5: Solve for x
    x = 557,400,845,016.89/857,948.49
  6. Step 6: Final answer
    x = 649,690.34

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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.