Home / 918,477.40-1,377,241.46-412,605.86

Finding the Fourth Proportional to 918,477.40, 1,377,241.46 and 412,605.86

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Solution

The fourth proportional to 918,477.40, 1,377,241.46 and 412,605.86 is: 618,695.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,477.40 : 1,377,241.46 = 412,605.86 : x
  2. Step 2: Convert to fraction form
    918,477.40/1,377,241.46 = 412,605.86/x
  3. Step 3: Cross multiply
    918,477.40x = 1,377,241.46 × 412,605.86
  4. Step 4: Simplify right side
    918,477.40x = 568,257,897,030.96
  5. Step 5: Solve for x
    x = 568,257,897,030.96/918,477.40
  6. Step 6: Final answer
    x = 618,695.57

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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.