Home / 451,810.42-623,920.31-290,948.37

Finding the Fourth Proportional to 451,810.42, 623,920.31 and 290,948.37

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Solution

The fourth proportional to 451,810.42, 623,920.31 and 290,948.37 is: 401,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,810.42 : 623,920.31 = 290,948.37 : x
  2. Step 2: Convert to fraction form
    451,810.42/623,920.31 = 290,948.37/x
  3. Step 3: Cross multiply
    451,810.42x = 623,920.31 × 290,948.37
  4. Step 4: Simplify right side
    451,810.42x = 181,528,594,501.01
  5. Step 5: Solve for x
    x = 181,528,594,501.01/451,810.42
  6. Step 6: Final answer
    x = 401,780.45

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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.