Home / 1,319,141.32-1,820,418.18-715,529.32

Finding the Fourth Proportional to 1,319,141.32, 1,820,418.18 and 715,529.32

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Solution

The fourth proportional to 1,319,141.32, 1,820,418.18 and 715,529.32 is: 987,432.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,141.32 : 1,820,418.18 = 715,529.32 : x
  2. Step 2: Convert to fraction form
    1,319,141.32/1,820,418.18 = 715,529.32/x
  3. Step 3: Cross multiply
    1,319,141.32x = 1,820,418.18 × 715,529.32
  4. Step 4: Simplify right side
    1,319,141.32x = 1,302,562,582,451.04
  5. Step 5: Solve for x
    x = 1,302,562,582,451.04/1,319,141.32
  6. Step 6: Final answer
    x = 987,432.17

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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.