Home / 941,639.60-1,412,459.40-838,420.40

Finding the Fourth Proportional to 941,639.60, 1,412,459.40 and 838,420.40

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Solution

The fourth proportional to 941,639.60, 1,412,459.40 and 838,420.40 is: 1,257,630.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,639.60 : 1,412,459.40 = 838,420.40 : x
  2. Step 2: Convert to fraction form
    941,639.60/1,412,459.40 = 838,420.40/x
  3. Step 3: Cross multiply
    941,639.60x = 1,412,459.40 × 838,420.40
  4. Step 4: Simplify right side
    941,639.60x = 1,184,234,775,131.76
  5. Step 5: Solve for x
    x = 1,184,234,775,131.76/941,639.60
  6. Step 6: Final answer
    x = 1,257,630.60

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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.