Home / 1,119,344.40-1,678,521.24-320,443.92

Finding the Fourth Proportional to 1,119,344.40, 1,678,521.24 and 320,443.92

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Solution

The fourth proportional to 1,119,344.40, 1,678,521.24 and 320,443.92 is: 480,524.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,344.40 : 1,678,521.24 = 320,443.92 : x
  2. Step 2: Convert to fraction form
    1,119,344.40/1,678,521.24 = 320,443.92/x
  3. Step 3: Cross multiply
    1,119,344.40x = 1,678,521.24 × 320,443.92
  4. Step 4: Simplify right side
    1,119,344.40x = 537,871,925,948.86
  5. Step 5: Solve for x
    x = 537,871,925,948.86/1,119,344.40
  6. Step 6: Final answer
    x = 480,524.07

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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.