Home / 1,019,809.04-1,529,494.85-420,614.78

Finding the Fourth Proportional to 1,019,809.04, 1,529,494.85 and 420,614.78

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Solution

The fourth proportional to 1,019,809.04, 1,529,494.85 and 420,614.78 is: 630,831.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,019,809.04 : 1,529,494.85 = 420,614.78 : x
  2. Step 2: Convert to fraction form
    1,019,809.04/1,529,494.85 = 420,614.78/x
  3. Step 3: Cross multiply
    1,019,809.04x = 1,529,494.85 × 420,614.78
  4. Step 4: Simplify right side
    1,019,809.04x = 643,328,133,247.95
  5. Step 5: Solve for x
    x = 643,328,133,247.95/1,019,809.04
  6. Step 6: Final answer
    x = 630,831.96

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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.