Home / 1,007,408.70-1,509,800.85-407,879.10

Finding the Fourth Proportional to 1,007,408.70, 1,509,800.85 and 407,879.10

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Solution

The fourth proportional to 1,007,408.70, 1,509,800.85 and 407,879.10 is: 611,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,408.70 : 1,509,800.85 = 407,879.10 : x
  2. Step 2: Convert to fraction form
    1,007,408.70/1,509,800.85 = 407,879.10/x
  3. Step 3: Cross multiply
    1,007,408.70x = 1,509,800.85 × 407,879.10
  4. Step 4: Simplify right side
    1,007,408.70x = 615,816,211,877.24
  5. Step 5: Solve for x
    x = 615,816,211,877.24/1,007,408.70
  6. Step 6: Final answer
    x = 611,287.37

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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.