Home / 780,763.55-1,077,682.20-454,152.92

Finding the Fourth Proportional to 780,763.55, 1,077,682.20 and 454,152.92

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Solution

The fourth proportional to 780,763.55, 1,077,682.20 and 454,152.92 is: 626,863.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,763.55 : 1,077,682.20 = 454,152.92 : x
  2. Step 2: Convert to fraction form
    780,763.55/1,077,682.20 = 454,152.92/x
  3. Step 3: Cross multiply
    780,763.55x = 1,077,682.20 × 454,152.92
  4. Step 4: Simplify right side
    780,763.55x = 489,432,517,962.02
  5. Step 5: Solve for x
    x = 489,432,517,962.02/780,763.55
  6. Step 6: Final answer
    x = 626,863.94

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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.