Home / 1,345,750.40-2,018,280.85-398,899.69

Finding the Fourth Proportional to 1,345,750.40, 2,018,280.85 and 398,899.69

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Solution

The fourth proportional to 1,345,750.40, 2,018,280.85 and 398,899.69 is: 598,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,750.40 : 2,018,280.85 = 398,899.69 : x
  2. Step 2: Convert to fraction form
    1,345,750.40/2,018,280.85 = 398,899.69/x
  3. Step 3: Cross multiply
    1,345,750.40x = 2,018,280.85 × 398,899.69
  4. Step 4: Simplify right side
    1,345,750.40x = 805,091,599,354.99
  5. Step 5: Solve for x
    x = 805,091,599,354.99/1,345,750.40
  6. Step 6: Final answer
    x = 598,247.34

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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.