Home / 926,300.70-1,388,725.20-365,754.78

Finding the Fourth Proportional to 926,300.70, 1,388,725.20 and 365,754.78

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Solution

The fourth proportional to 926,300.70, 1,388,725.20 and 365,754.78 is: 548,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,300.70 : 1,388,725.20 = 365,754.78 : x
  2. Step 2: Convert to fraction form
    926,300.70/1,388,725.20 = 365,754.78/x
  3. Step 3: Cross multiply
    926,300.70x = 1,388,725.20 × 365,754.78
  4. Step 4: Simplify right side
    926,300.70x = 507,932,880,006.46
  5. Step 5: Solve for x
    x = 507,932,880,006.46/926,300.70
  6. Step 6: Final answer
    x = 548,345.56

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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.