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Finding the Fourth Proportional to 455,833.20, 684,916.20 and 404,511.60

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Solution

The fourth proportional to 455,833.20, 684,916.20 and 404,511.60 is: 607,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,833.20 : 684,916.20 = 404,511.60 : x
  2. Step 2: Convert to fraction form
    455,833.20/684,916.20 = 404,511.60/x
  3. Step 3: Cross multiply
    455,833.20x = 684,916.20 × 404,511.60
  4. Step 4: Simplify right side
    455,833.20x = 277,056,547,927.92
  5. Step 5: Solve for x
    x = 277,056,547,927.92/455,833.20
  6. Step 6: Final answer
    x = 607,802.48

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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.