Home / 1,298,230.68-1,947,406.16-399,712.67

Finding the Fourth Proportional to 1,298,230.68, 1,947,406.16 and 399,712.67

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Solution

The fourth proportional to 1,298,230.68, 1,947,406.16 and 399,712.67 is: 599,587.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,230.68 : 1,947,406.16 = 399,712.67 : x
  2. Step 2: Convert to fraction form
    1,298,230.68/1,947,406.16 = 399,712.67/x
  3. Step 3: Cross multiply
    1,298,230.68x = 1,947,406.16 × 399,712.67
  4. Step 4: Simplify right side
    1,298,230.68x = 778,402,907,050.30
  5. Step 5: Solve for x
    x = 778,402,907,050.30/1,298,230.68
  6. Step 6: Final answer
    x = 599,587.51

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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.