Home / 1,358,986.34-2,038,479.93-399,442.11

Finding the Fourth Proportional to 1,358,986.34, 2,038,479.93 and 399,442.11

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Solution

The fourth proportional to 1,358,986.34, 2,038,479.93 and 399,442.11 is: 599,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,986.34 : 2,038,479.93 = 399,442.11 : x
  2. Step 2: Convert to fraction form
    1,358,986.34/2,038,479.93 = 399,442.11/x
  3. Step 3: Cross multiply
    1,358,986.34x = 2,038,479.93 × 399,442.11
  4. Step 4: Simplify right side
    1,358,986.34x = 814,254,724,431.85
  5. Step 5: Solve for x
    x = 814,254,724,431.85/1,358,986.34
  6. Step 6: Final answer
    x = 599,163.29

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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.