Home / 780,706.92-1,077,352.38-436,521.72

Finding the Fourth Proportional to 780,706.92, 1,077,352.38 and 436,521.72

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Solution

The fourth proportional to 780,706.92, 1,077,352.38 and 436,521.72 is: 602,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,706.92 : 1,077,352.38 = 436,521.72 : x
  2. Step 2: Convert to fraction form
    780,706.92/1,077,352.38 = 436,521.72/x
  3. Step 3: Cross multiply
    780,706.92x = 1,077,352.38 × 436,521.72
  4. Step 4: Simplify right side
    780,706.92x = 470,287,713,963.69
  5. Step 5: Solve for x
    x = 470,287,713,963.69/780,706.92
  6. Step 6: Final answer
    x = 602,387.02

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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.