Home / 851,639.11-1,175,444.36-489,262.77

Finding the Fourth Proportional to 851,639.11, 1,175,444.36 and 489,262.77

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Solution

The fourth proportional to 851,639.11, 1,175,444.36 and 489,262.77 is: 675,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,639.11 : 1,175,444.36 = 489,262.77 : x
  2. Step 2: Convert to fraction form
    851,639.11/1,175,444.36 = 489,262.77/x
  3. Step 3: Cross multiply
    851,639.11x = 1,175,444.36 × 489,262.77
  4. Step 4: Simplify right side
    851,639.11x = 575,101,161,108.16
  5. Step 5: Solve for x
    x = 575,101,161,108.16/851,639.11
  6. Step 6: Final answer
    x = 675,287.40

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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.