Home / 781,087.55-1,077,466.73-454,363.80

Finding the Fourth Proportional to 781,087.55, 1,077,466.73 and 454,363.80

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Solution

The fourth proportional to 781,087.55, 1,077,466.73 and 454,363.80 is: 626,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,087.55 : 1,077,466.73 = 454,363.80 : x
  2. Step 2: Convert to fraction form
    781,087.55/1,077,466.73 = 454,363.80/x
  3. Step 3: Cross multiply
    781,087.55x = 1,077,466.73 × 454,363.80
  4. Step 4: Simplify right side
    781,087.55x = 489,561,875,544.56
  5. Step 5: Solve for x
    x = 489,561,875,544.56/781,087.55
  6. Step 6: Final answer
    x = 626,769.53

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Double scale
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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.