Home / 788,643.70-1,181,410.35-455,830.90

Finding the Fourth Proportional to 788,643.70, 1,181,410.35 and 455,830.90

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Solution

The fourth proportional to 788,643.70, 1,181,410.35 and 455,830.90 is: 682,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,643.70 : 1,181,410.35 = 455,830.90 : x
  2. Step 2: Convert to fraction form
    788,643.70/1,181,410.35 = 455,830.90/x
  3. Step 3: Cross multiply
    788,643.70x = 1,181,410.35 × 455,830.90
  4. Step 4: Simplify right side
    788,643.70x = 538,523,343,109.82
  5. Step 5: Solve for x
    x = 538,523,343,109.82/788,643.70
  6. Step 6: Final answer
    x = 682,847.45

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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.