Home / 2,918,530.40-4,377,795.60-788,943.20

Finding the Fourth Proportional to 2,918,530.40, 4,377,795.60 and 788,943.20

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Solution

The fourth proportional to 2,918,530.40, 4,377,795.60 and 788,943.20 is: 1,183,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,530.40 : 4,377,795.60 = 788,943.20 : x
  2. Step 2: Convert to fraction form
    2,918,530.40/4,377,795.60 = 788,943.20/x
  3. Step 3: Cross multiply
    2,918,530.40x = 4,377,795.60 × 788,943.20
  4. Step 4: Simplify right side
    2,918,530.40x = 3,453,832,069,609.92
  5. Step 5: Solve for x
    x = 3,453,832,069,609.92/2,918,530.40
  6. Step 6: Final answer
    x = 1,183,414.80

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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.