Home / 1,230,910.40-1,846,509.60-389,547.20

Finding the Fourth Proportional to 1,230,910.40, 1,846,509.60 and 389,547.20

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Solution

The fourth proportional to 1,230,910.40, 1,846,509.60 and 389,547.20 is: 584,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,910.40 : 1,846,509.60 = 389,547.20 : x
  2. Step 2: Convert to fraction form
    1,230,910.40/1,846,509.60 = 389,547.20/x
  3. Step 3: Cross multiply
    1,230,910.40x = 1,846,509.60 × 389,547.20
  4. Step 4: Simplify right side
    1,230,910.40x = 719,302,644,453.12
  5. Step 5: Solve for x
    x = 719,302,644,453.12/1,230,910.40
  6. Step 6: Final answer
    x = 584,366.37

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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.