Home / 817,643.64-1,226,471.04-312,068.28

Finding the Fourth Proportional to 817,643.64, 1,226,471.04 and 312,068.28

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Solution

The fourth proportional to 817,643.64, 1,226,471.04 and 312,068.28 is: 468,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,643.64 : 1,226,471.04 = 312,068.28 : x
  2. Step 2: Convert to fraction form
    817,643.64/1,226,471.04 = 312,068.28/x
  3. Step 3: Cross multiply
    817,643.64x = 1,226,471.04 × 312,068.28
  4. Step 4: Simplify right side
    817,643.64x = 382,742,707,922.61
  5. Step 5: Solve for x
    x = 382,742,707,922.61/817,643.64
  6. Step 6: Final answer
    x = 468,104.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.