Home / 4,319,820-6,480,779.76-1,328,004

Finding the Fourth Proportional to 4,319,820, 6,480,779.76 and 1,328,004

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Solution

The fourth proportional to 4,319,820, 6,480,779.76 and 1,328,004 is: 1,992,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319,820 : 6,480,779.76 = 1,328,004 : x
  2. Step 2: Convert to fraction form
    4,319,820/6,480,779.76 = 1,328,004/x
  3. Step 3: Cross multiply
    4,319,820x = 6,480,779.76 × 1,328,004
  4. Step 4: Simplify right side
    4,319,820x = 8,606,501,444,399.04
  5. Step 5: Solve for x
    x = 8,606,501,444,399.04/4,319,820
  6. Step 6: Final answer
    x = 1,992,328.72

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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.