Home / 907,421.40-1,361,261.70-308,410.20

Finding the Fourth Proportional to 907,421.40, 1,361,261.70 and 308,410.20

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Solution

The fourth proportional to 907,421.40, 1,361,261.70 and 308,410.20 is: 462,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,421.40 : 1,361,261.70 = 308,410.20 : x
  2. Step 2: Convert to fraction form
    907,421.40/1,361,261.70 = 308,410.20/x
  3. Step 3: Cross multiply
    907,421.40x = 1,361,261.70 × 308,410.20
  4. Step 4: Simplify right side
    907,421.40x = 419,826,993,149.34
  5. Step 5: Solve for x
    x = 419,826,993,149.34/907,421.40
  6. Step 6: Final answer
    x = 462,659.35

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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.