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Finding the Fourth Proportional to 576,276.48, 794,309.72 and 385,220.16

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Solution

The fourth proportional to 576,276.48, 794,309.72 and 385,220.16 is: 530,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,276.48 : 794,309.72 = 385,220.16 : x
  2. Step 2: Convert to fraction form
    576,276.48/794,309.72 = 385,220.16/x
  3. Step 3: Cross multiply
    576,276.48x = 794,309.72 × 385,220.16
  4. Step 4: Simplify right side
    576,276.48x = 305,984,117,427.96
  5. Step 5: Solve for x
    x = 305,984,117,427.96/576,276.48
  6. Step 6: Final answer
    x = 530,967.56

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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.