Home / 916,219.60-1,374,329.40-384,341.20

Finding the Fourth Proportional to 916,219.60, 1,374,329.40 and 384,341.20

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Solution

The fourth proportional to 916,219.60, 1,374,329.40 and 384,341.20 is: 576,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,219.60 : 1,374,329.40 = 384,341.20 : x
  2. Step 2: Convert to fraction form
    916,219.60/1,374,329.40 = 384,341.20/x
  3. Step 3: Cross multiply
    916,219.60x = 1,374,329.40 × 384,341.20
  4. Step 4: Simplify right side
    916,219.60x = 528,211,410,791.28
  5. Step 5: Solve for x
    x = 528,211,410,791.28/916,219.60
  6. Step 6: Final answer
    x = 576,511.80

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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.