Home / 1,421,004.68-1,960,928.16-776,447

Finding the Fourth Proportional to 1,421,004.68, 1,960,928.16 and 776,447

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Solution

The fourth proportional to 1,421,004.68, 1,960,928.16 and 776,447 is: 1,071,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,004.68 : 1,960,928.16 = 776,447 : x
  2. Step 2: Convert to fraction form
    1,421,004.68/1,960,928.16 = 776,447/x
  3. Step 3: Cross multiply
    1,421,004.68x = 1,960,928.16 × 776,447
  4. Step 4: Simplify right side
    1,421,004.68x = 1,522,556,787,047.52
  5. Step 5: Solve for x
    x = 1,522,556,787,047.52/1,421,004.68
  6. Step 6: Final answer
    x = 1,071,465.01

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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.