Home / 999,398.36-1,379,303.34-563,905.32

Finding the Fourth Proportional to 999,398.36, 1,379,303.34 and 563,905.32

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Solution

The fourth proportional to 999,398.36, 1,379,303.34 and 563,905.32 is: 778,264.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,398.36 : 1,379,303.34 = 563,905.32 : x
  2. Step 2: Convert to fraction form
    999,398.36/1,379,303.34 = 563,905.32/x
  3. Step 3: Cross multiply
    999,398.36x = 1,379,303.34 × 563,905.32
  4. Step 4: Simplify right side
    999,398.36x = 777,796,491,319.77
  5. Step 5: Solve for x
    x = 777,796,491,319.77/999,398.36
  6. Step 6: Final answer
    x = 778,264.73

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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.