Home / 990,018.45-1,366,226.01-537,309.45

Finding the Fourth Proportional to 990,018.45, 1,366,226.01 and 537,309.45

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Solution

The fourth proportional to 990,018.45, 1,366,226.01 and 537,309.45 is: 741,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,018.45 : 1,366,226.01 = 537,309.45 : x
  2. Step 2: Convert to fraction form
    990,018.45/1,366,226.01 = 537,309.45/x
  3. Step 3: Cross multiply
    990,018.45x = 1,366,226.01 × 537,309.45
  4. Step 4: Simplify right side
    990,018.45x = 734,086,146,008.79
  5. Step 5: Solve for x
    x = 734,086,146,008.79/990,018.45
  6. Step 6: Final answer
    x = 741,487.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.