Home / 977,019.60-1,465,310.70-642,408.60

Finding the Fourth Proportional to 977,019.60, 1,465,310.70 and 642,408.60

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Solution

The fourth proportional to 977,019.60, 1,465,310.70 and 642,408.60 is: 963,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,019.60 : 1,465,310.70 = 642,408.60 : x
  2. Step 2: Convert to fraction form
    977,019.60/1,465,310.70 = 642,408.60/x
  3. Step 3: Cross multiply
    977,019.60x = 1,465,310.70 × 642,408.60
  4. Step 4: Simplify right side
    977,019.60x = 941,328,195,352.02
  5. Step 5: Solve for x
    x = 941,328,195,352.02/977,019.60
  6. Step 6: Final answer
    x = 963,469.10

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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.