Home / 2,989,871.70-4,484,807.55-859,830.90

Finding the Fourth Proportional to 2,989,871.70, 4,484,807.55 and 859,830.90

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Solution

The fourth proportional to 2,989,871.70, 4,484,807.55 and 859,830.90 is: 1,289,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,871.70 : 4,484,807.55 = 859,830.90 : x
  2. Step 2: Convert to fraction form
    2,989,871.70/4,484,807.55 = 859,830.90/x
  3. Step 3: Cross multiply
    2,989,871.70x = 4,484,807.55 × 859,830.90
  4. Step 4: Simplify right side
    2,989,871.70x = 3,856,176,112,043.30
  5. Step 5: Solve for x
    x = 3,856,176,112,043.30/2,989,871.70
  6. Step 6: Final answer
    x = 1,289,746.35

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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.