Home / 1,311,688.80-1,967,533.20-470,325.60

Finding the Fourth Proportional to 1,311,688.80, 1,967,533.20 and 470,325.60

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Solution

The fourth proportional to 1,311,688.80, 1,967,533.20 and 470,325.60 is: 705,488.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,688.80 : 1,967,533.20 = 470,325.60 : x
  2. Step 2: Convert to fraction form
    1,311,688.80/1,967,533.20 = 470,325.60/x
  3. Step 3: Cross multiply
    1,311,688.80x = 1,967,533.20 × 470,325.60
  4. Step 4: Simplify right side
    1,311,688.80x = 925,381,232,809.92
  5. Step 5: Solve for x
    x = 925,381,232,809.92/1,311,688.80
  6. Step 6: Final answer
    x = 705,488.40

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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.