Home / 843,128.86-1,163,545.36-461,155.64

Finding the Fourth Proportional to 843,128.86, 1,163,545.36 and 461,155.64

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Solution

The fourth proportional to 843,128.86, 1,163,545.36 and 461,155.64 is: 636,409.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,128.86 : 1,163,545.36 = 461,155.64 : x
  2. Step 2: Convert to fraction form
    843,128.86/1,163,545.36 = 461,155.64/x
  3. Step 3: Cross multiply
    843,128.86x = 1,163,545.36 × 461,155.64
  4. Step 4: Simplify right side
    843,128.86x = 536,575,505,159.83
  5. Step 5: Solve for x
    x = 536,575,505,159.83/843,128.86
  6. Step 6: Final answer
    x = 636,409.84

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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.