Home / 788,678.20-1,181,462.10-455,865.40

Finding the Fourth Proportional to 788,678.20, 1,181,462.10 and 455,865.40

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Solution

The fourth proportional to 788,678.20, 1,181,462.10 and 455,865.40 is: 682,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,678.20 : 1,181,462.10 = 455,865.40 : x
  2. Step 2: Convert to fraction form
    788,678.20/1,181,462.10 = 455,865.40/x
  3. Step 3: Cross multiply
    788,678.20x = 1,181,462.10 × 455,865.40
  4. Step 4: Simplify right side
    788,678.20x = 538,587,692,801.34
  5. Step 5: Solve for x
    x = 538,587,692,801.34/788,678.20
  6. Step 6: Final answer
    x = 682,899.18

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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.