Home / 530,033.16-731,438.06-288,317.69

Finding the Fourth Proportional to 530,033.16, 731,438.06 and 288,317.69

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Solution

The fourth proportional to 530,033.16, 731,438.06 and 288,317.69 is: 397,874.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,033.16 : 731,438.06 = 288,317.69 : x
  2. Step 2: Convert to fraction form
    530,033.16/731,438.06 = 288,317.69/x
  3. Step 3: Cross multiply
    530,033.16x = 731,438.06 × 288,317.69
  4. Step 4: Simplify right side
    530,033.16x = 210,886,526,738.50
  5. Step 5: Solve for x
    x = 210,886,526,738.50/530,033.16
  6. Step 6: Final answer
    x = 397,874.21

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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.