Home / 1,188,798.76-1,641,178.75-916,269.40

Finding the Fourth Proportional to 1,188,798.76, 1,641,178.75 and 916,269.40

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Solution

The fourth proportional to 1,188,798.76, 1,641,178.75 and 916,269.40 is: 1,264,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,798.76 : 1,641,178.75 = 916,269.40 : x
  2. Step 2: Convert to fraction form
    1,188,798.76/1,641,178.75 = 916,269.40/x
  3. Step 3: Cross multiply
    1,188,798.76x = 1,641,178.75 × 916,269.40
  4. Step 4: Simplify right side
    1,188,798.76x = 1,503,761,860,349.36
  5. Step 5: Solve for x
    x = 1,503,761,860,349.36/1,188,798.76
  6. Step 6: Final answer
    x = 1,264,942.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.