Home / 1,618,643.90-2,427,965.85-862,816.70

Finding the Fourth Proportional to 1,618,643.90, 2,427,965.85 and 862,816.70

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Solution

The fourth proportional to 1,618,643.90, 2,427,965.85 and 862,816.70 is: 1,294,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618,643.90 : 2,427,965.85 = 862,816.70 : x
  2. Step 2: Convert to fraction form
    1,618,643.90/2,427,965.85 = 862,816.70/x
  3. Step 3: Cross multiply
    1,618,643.90x = 2,427,965.85 × 862,816.70
  4. Step 4: Simplify right side
    1,618,643.90x = 2,094,889,482,409.70
  5. Step 5: Solve for x
    x = 2,094,889,482,409.70/1,618,643.90
  6. Step 6: Final answer
    x = 1,294,225.05

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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.