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Finding the Fourth Proportional to 880,983, 1,215,653.40 and 518,327.10

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Solution

The fourth proportional to 880,983, 1,215,653.40 and 518,327.10 is: 715,230.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,983 : 1,215,653.40 = 518,327.10 : x
  2. Step 2: Convert to fraction form
    880,983/1,215,653.40 = 518,327.10/x
  3. Step 3: Cross multiply
    880,983x = 1,215,653.40 × 518,327.10
  4. Step 4: Simplify right side
    880,983x = 630,106,101,427.14
  5. Step 5: Solve for x
    x = 630,106,101,427.14/880,983
  6. Step 6: Final answer
    x = 715,230.72

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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.