Home / 1,243,813.52-1,865,730.74-345,325.32

Finding the Fourth Proportional to 1,243,813.52, 1,865,730.74 and 345,325.32

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Solution

The fourth proportional to 1,243,813.52, 1,865,730.74 and 345,325.32 is: 517,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,813.52 : 1,865,730.74 = 345,325.32 : x
  2. Step 2: Convert to fraction form
    1,243,813.52/1,865,730.74 = 345,325.32/x
  3. Step 3: Cross multiply
    1,243,813.52x = 1,865,730.74 × 345,325.32
  4. Step 4: Simplify right side
    1,243,813.52x = 644,284,063,097.71
  5. Step 5: Solve for x
    x = 644,284,063,097.71/1,243,813.52
  6. Step 6: Final answer
    x = 517,990.88

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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.