Home / 1,146,639.40-1,582,381.32-630,415.12

Finding the Fourth Proportional to 1,146,639.40, 1,582,381.32 and 630,415.12

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Solution

The fourth proportional to 1,146,639.40, 1,582,381.32 and 630,415.12 is: 869,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,639.40 : 1,582,381.32 = 630,415.12 : x
  2. Step 2: Convert to fraction form
    1,146,639.40/1,582,381.32 = 630,415.12/x
  3. Step 3: Cross multiply
    1,146,639.40x = 1,582,381.32 × 630,415.12
  4. Step 4: Simplify right side
    1,146,639.40x = 997,557,109,733.56
  5. Step 5: Solve for x
    x = 997,557,109,733.56/1,146,639.40
  6. Step 6: Final answer
    x = 869,983.28

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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.