Home / 1,890,400.80-2,835,601.20-692,362.20

Finding the Fourth Proportional to 1,890,400.80, 2,835,601.20 and 692,362.20

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Solution

The fourth proportional to 1,890,400.80, 2,835,601.20 and 692,362.20 is: 1,038,543.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,400.80 : 2,835,601.20 = 692,362.20 : x
  2. Step 2: Convert to fraction form
    1,890,400.80/2,835,601.20 = 692,362.20/x
  3. Step 3: Cross multiply
    1,890,400.80x = 2,835,601.20 × 692,362.20
  4. Step 4: Simplify right side
    1,890,400.80x = 1,963,263,085,154.64
  5. Step 5: Solve for x
    x = 1,963,263,085,154.64/1,890,400.80
  6. Step 6: Final answer
    x = 1,038,543.30

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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.