Home / 5,280,999.30-7,921,498.95-1,291,911.30

Finding the Fourth Proportional to 5,280,999.30, 7,921,498.95 and 1,291,911.30

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Solution

The fourth proportional to 5,280,999.30, 7,921,498.95 and 1,291,911.30 is: 1,937,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,999.30 : 7,921,498.95 = 1,291,911.30 : x
  2. Step 2: Convert to fraction form
    5,280,999.30/7,921,498.95 = 1,291,911.30/x
  3. Step 3: Cross multiply
    5,280,999.30x = 7,921,498.95 × 1,291,911.30
  4. Step 4: Simplify right side
    5,280,999.30x = 10,233,874,006,443.13
  5. Step 5: Solve for x
    x = 10,233,874,006,443.13/5,280,999.30
  6. Step 6: Final answer
    x = 1,937,866.95

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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.