Home / 1,039,726.08-1,559,737.89-320,128.67

Finding the Fourth Proportional to 1,039,726.08, 1,559,737.89 and 320,128.67

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Solution

The fourth proportional to 1,039,726.08, 1,559,737.89 and 320,128.67 is: 480,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,726.08 : 1,559,737.89 = 320,128.67 : x
  2. Step 2: Convert to fraction form
    1,039,726.08/1,559,737.89 = 320,128.67/x
  3. Step 3: Cross multiply
    1,039,726.08x = 1,559,737.89 × 320,128.67
  4. Step 4: Simplify right side
    1,039,726.08x = 499,316,811,400.13
  5. Step 5: Solve for x
    x = 499,316,811,400.13/1,039,726.08
  6. Step 6: Final answer
    x = 480,238.81

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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.