Home / 563,835.69-778,092.80-305,721.19

Finding the Fourth Proportional to 563,835.69, 778,092.80 and 305,721.19

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Solution

The fourth proportional to 563,835.69, 778,092.80 and 305,721.19 is: 421,895.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,835.69 : 778,092.80 = 305,721.19 : x
  2. Step 2: Convert to fraction form
    563,835.69/778,092.80 = 305,721.19/x
  3. Step 3: Cross multiply
    563,835.69x = 778,092.80 × 305,721.19
  4. Step 4: Simplify right side
    563,835.69x = 237,879,459,942.28
  5. Step 5: Solve for x
    x = 237,879,459,942.28/563,835.69
  6. Step 6: Final answer
    x = 421,895.00

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.