Home / 788,078.40-1,182,117.60-455,265.60

Finding the Fourth Proportional to 788,078.40, 1,182,117.60 and 455,265.60

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Solution

The fourth proportional to 788,078.40, 1,182,117.60 and 455,265.60 is: 682,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,078.40 : 1,182,117.60 = 455,265.60 : x
  2. Step 2: Convert to fraction form
    788,078.40/1,182,117.60 = 455,265.60/x
  3. Step 3: Cross multiply
    788,078.40x = 1,182,117.60 × 455,265.60
  4. Step 4: Simplify right side
    788,078.40x = 538,177,478,434.56
  5. Step 5: Solve for x
    x = 538,177,478,434.56/788,078.40
  6. Step 6: Final answer
    x = 682,898.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.