Home / 1,421,011.54-1,961,022.32-776,473.48

Finding the Fourth Proportional to 1,421,011.54, 1,961,022.32 and 776,473.48

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Solution

The fourth proportional to 1,421,011.54, 1,961,022.32 and 776,473.48 is: 1,071,547.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,011.54 : 1,961,022.32 = 776,473.48 : x
  2. Step 2: Convert to fraction form
    1,421,011.54/1,961,022.32 = 776,473.48/x
  3. Step 3: Cross multiply
    1,421,011.54x = 1,961,022.32 × 776,473.48
  4. Step 4: Simplify right side
    1,421,011.54x = 1,522,681,825,168.07
  5. Step 5: Solve for x
    x = 1,522,681,825,168.07/1,421,011.54
  6. Step 6: Final answer
    x = 1,071,547.83

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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.