Home / 511,239.90-705,563.55-307,357.23

Finding the Fourth Proportional to 511,239.90, 705,563.55 and 307,357.23

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Solution

The fourth proportional to 511,239.90, 705,563.55 and 307,357.23 is: 424,184.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,239.90 : 705,563.55 = 307,357.23 : x
  2. Step 2: Convert to fraction form
    511,239.90/705,563.55 = 307,357.23/x
  3. Step 3: Cross multiply
    511,239.90x = 705,563.55 × 307,357.23
  4. Step 4: Simplify right side
    511,239.90x = 216,860,058,316.97
  5. Step 5: Solve for x
    x = 216,860,058,316.97/511,239.90
  6. Step 6: Final answer
    x = 424,184.53

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1.5x scale

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.