Home / 772,893.60-1,159,340.40-418,599.60

Finding the Fourth Proportional to 772,893.60, 1,159,340.40 and 418,599.60

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Solution

The fourth proportional to 772,893.60, 1,159,340.40 and 418,599.60 is: 627,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,893.60 : 1,159,340.40 = 418,599.60 : x
  2. Step 2: Convert to fraction form
    772,893.60/1,159,340.40 = 418,599.60/x
  3. Step 3: Cross multiply
    772,893.60x = 1,159,340.40 × 418,599.60
  4. Step 4: Simplify right side
    772,893.60x = 485,299,427,703.84
  5. Step 5: Solve for x
    x = 485,299,427,703.84/772,893.60
  6. Step 6: Final answer
    x = 627,899.40

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Double scale
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Similar ratio
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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.