Home / 762,046.90-1,051,142.73-489,646.60

Finding the Fourth Proportional to 762,046.90, 1,051,142.73 and 489,646.60

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Solution

The fourth proportional to 762,046.90, 1,051,142.73 and 489,646.60 is: 675,402.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,046.90 : 1,051,142.73 = 489,646.60 : x
  2. Step 2: Convert to fraction form
    762,046.90/1,051,142.73 = 489,646.60/x
  3. Step 3: Cross multiply
    762,046.90x = 1,051,142.73 × 489,646.60
  4. Step 4: Simplify right side
    762,046.90x = 514,688,463,859.22
  5. Step 5: Solve for x
    x = 514,688,463,859.22/762,046.90
  6. Step 6: Final answer
    x = 675,402.61

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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.