Home / 867,110.40-1,300,665.60-447,206.40

Finding the Fourth Proportional to 867,110.40, 1,300,665.60 and 447,206.40

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Solution

The fourth proportional to 867,110.40, 1,300,665.60 and 447,206.40 is: 670,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,110.40 : 1,300,665.60 = 447,206.40 : x
  2. Step 2: Convert to fraction form
    867,110.40/1,300,665.60 = 447,206.40/x
  3. Step 3: Cross multiply
    867,110.40x = 1,300,665.60 × 447,206.40
  4. Step 4: Simplify right side
    867,110.40x = 581,665,980,579.84
  5. Step 5: Solve for x
    x = 581,665,980,579.84/867,110.40
  6. Step 6: Final answer
    x = 670,809.60

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1.5x scale

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.