Home / 1,645,685.49-2,271,216.91-947,990.41

Finding the Fourth Proportional to 1,645,685.49, 2,271,216.91 and 947,990.41

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Solution

The fourth proportional to 1,645,685.49, 2,271,216.91 and 947,990.41 is: 1,308,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,685.49 : 2,271,216.91 = 947,990.41 : x
  2. Step 2: Convert to fraction form
    1,645,685.49/2,271,216.91 = 947,990.41/x
  3. Step 3: Cross multiply
    1,645,685.49x = 2,271,216.91 × 947,990.41
  4. Step 4: Simplify right side
    1,645,685.49x = 2,153,091,849,709.83
  5. Step 5: Solve for x
    x = 2,153,091,849,709.83/1,645,685.49
  6. Step 6: Final answer
    x = 1,308,325.23

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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.