Home / 3,280,712.40-4,921,068.60-3,020,896.80

Finding the Fourth Proportional to 3,280,712.40, 4,921,068.60 and 3,020,896.80

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Solution

The fourth proportional to 3,280,712.40, 4,921,068.60 and 3,020,896.80 is: 4,531,345.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280,712.40 : 4,921,068.60 = 3,020,896.80 : x
  2. Step 2: Convert to fraction form
    3,280,712.40/4,921,068.60 = 3,020,896.80/x
  3. Step 3: Cross multiply
    3,280,712.40x = 4,921,068.60 × 3,020,896.80
  4. Step 4: Simplify right side
    3,280,712.40x = 14,866,040,386,320.48
  5. Step 5: Solve for x
    x = 14,866,040,386,320.48/3,280,712.40
  6. Step 6: Final answer
    x = 4,531,345.20

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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.