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Finding the Fourth Proportional to 660,083.58, 910,917.09 and 358,277.58

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Solution

The fourth proportional to 660,083.58, 910,917.09 and 358,277.58 is: 494,424.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,083.58 : 910,917.09 = 358,277.58 : x
  2. Step 2: Convert to fraction form
    660,083.58/910,917.09 = 358,277.58/x
  3. Step 3: Cross multiply
    660,083.58x = 910,917.09 × 358,277.58
  4. Step 4: Simplify right side
    660,083.58x = 326,361,170,585.84
  5. Step 5: Solve for x
    x = 326,361,170,585.84/660,083.58
  6. Step 6: Final answer
    x = 494,424.01

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1.5x scale

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.