Home / 820,157.26-1,230,650.82-553,357.06

Finding the Fourth Proportional to 820,157.26, 1,230,650.82 and 553,357.06

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Solution

The fourth proportional to 820,157.26, 1,230,650.82 and 553,357.06 is: 830,315.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,157.26 : 1,230,650.82 = 553,357.06 : x
  2. Step 2: Convert to fraction form
    820,157.26/1,230,650.82 = 553,357.06/x
  3. Step 3: Cross multiply
    820,157.26x = 1,230,650.82 × 553,357.06
  4. Step 4: Simplify right side
    820,157.26x = 680,989,319,641.79
  5. Step 5: Solve for x
    x = 680,989,319,641.79/820,157.26
  6. Step 6: Final answer
    x = 830,315.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.