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Finding the Fourth Proportional to 528,546.72, 729,394.94 and 286,829.29

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Solution

The fourth proportional to 528,546.72, 729,394.94 and 286,829.29 is: 395,824.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,546.72 : 729,394.94 = 286,829.29 : x
  2. Step 2: Convert to fraction form
    528,546.72/729,394.94 = 286,829.29/x
  3. Step 3: Cross multiply
    528,546.72x = 729,394.94 × 286,829.29
  4. Step 4: Simplify right side
    528,546.72x = 209,211,832,769.79
  5. Step 5: Solve for x
    x = 209,211,832,769.79/528,546.72
  6. Step 6: Final answer
    x = 395,824.67

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1.5x scale

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.