Home / 920,538.80-1,379,039.16-564,514.64

Finding the Fourth Proportional to 920,538.80, 1,379,039.16 and 564,514.64

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Solution

The fourth proportional to 920,538.80, 1,379,039.16 and 564,514.64 is: 845,687.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,538.80 : 1,379,039.16 = 564,514.64 : x
  2. Step 2: Convert to fraction form
    920,538.80/1,379,039.16 = 564,514.64/x
  3. Step 3: Cross multiply
    920,538.80x = 1,379,039.16 × 564,514.64
  4. Step 4: Simplify right side
    920,538.80x = 778,487,794,953.30
  5. Step 5: Solve for x
    x = 778,487,794,953.30/920,538.80
  6. Step 6: Final answer
    x = 845,687.11

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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.