Home / 926,405.20-1,389,672.60-365,366.80

Finding the Fourth Proportional to 926,405.20, 1,389,672.60 and 365,366.80

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Solution

The fourth proportional to 926,405.20, 1,389,672.60 and 365,366.80 is: 548,075.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,405.20 : 1,389,672.60 = 365,366.80 : x
  2. Step 2: Convert to fraction form
    926,405.20/1,389,672.60 = 365,366.80/x
  3. Step 3: Cross multiply
    926,405.20x = 1,389,672.60 × 365,366.80
  4. Step 4: Simplify right side
    926,405.20x = 507,740,230,909.68
  5. Step 5: Solve for x
    x = 507,740,230,909.68/926,405.20
  6. Step 6: Final answer
    x = 548,075.76

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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.