Home / 918,315.20-1,376,128.20-823,545.20

Finding the Fourth Proportional to 918,315.20, 1,376,128.20 and 823,545.20

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Solution

The fourth proportional to 918,315.20, 1,376,128.20 and 823,545.20 is: 1,234,111.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,315.20 : 1,376,128.20 = 823,545.20 : x
  2. Step 2: Convert to fraction form
    918,315.20/1,376,128.20 = 823,545.20/x
  3. Step 3: Cross multiply
    918,315.20x = 1,376,128.20 × 823,545.20
  4. Step 4: Simplify right side
    918,315.20x = 1,133,303,773,694.64
  5. Step 5: Solve for x
    x = 1,133,303,773,694.64/918,315.20
  6. Step 6: Final answer
    x = 1,234,111.96

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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.