Home / 851,953.32-1,175,656.01-489,121.79

Finding the Fourth Proportional to 851,953.32, 1,175,656.01 and 489,121.79

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Solution

The fourth proportional to 851,953.32, 1,175,656.01 and 489,121.79 is: 674,965.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,953.32 : 1,175,656.01 = 489,121.79 : x
  2. Step 2: Convert to fraction form
    851,953.32/1,175,656.01 = 489,121.79/x
  3. Step 3: Cross multiply
    851,953.32x = 1,175,656.01 × 489,121.79
  4. Step 4: Simplify right side
    851,953.32x = 575,038,963,711.57
  5. Step 5: Solve for x
    x = 575,038,963,711.57/851,953.32
  6. Step 6: Final answer
    x = 674,965.34

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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.