Home / 530,035.66-731,441.50-288,320.19

Finding the Fourth Proportional to 530,035.66, 731,441.50 and 288,320.19

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Solution

The fourth proportional to 530,035.66, 731,441.50 and 288,320.19 is: 397,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,035.66 : 731,441.50 = 288,320.19 : x
  2. Step 2: Convert to fraction form
    530,035.66/731,441.50 = 288,320.19/x
  3. Step 3: Cross multiply
    530,035.66x = 731,441.50 × 288,320.19
  4. Step 4: Simplify right side
    530,035.66x = 210,889,352,253.89
  5. Step 5: Solve for x
    x = 210,889,352,253.89/530,035.66
  6. Step 6: Final answer
    x = 397,877.67

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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.