Home / 993,213.12-1,370,665.20-563,511.36

Finding the Fourth Proportional to 993,213.12, 1,370,665.20 and 563,511.36

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Solution

The fourth proportional to 993,213.12, 1,370,665.20 and 563,511.36 is: 777,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,213.12 : 1,370,665.20 = 563,511.36 : x
  2. Step 2: Convert to fraction form
    993,213.12/1,370,665.20 = 563,511.36/x
  3. Step 3: Cross multiply
    993,213.12x = 1,370,665.20 × 563,511.36
  4. Step 4: Simplify right side
    993,213.12x = 772,385,410,956.67
  5. Step 5: Solve for x
    x = 772,385,410,956.67/993,213.12
  6. Step 6: Final answer
    x = 777,663.32

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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.