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Finding the Fourth Proportional to 528,054.70, 792,082.05 and 509,392.30

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Solution

The fourth proportional to 528,054.70, 792,082.05 and 509,392.30 is: 764,088.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,054.70 : 792,082.05 = 509,392.30 : x
  2. Step 2: Convert to fraction form
    528,054.70/792,082.05 = 509,392.30/x
  3. Step 3: Cross multiply
    528,054.70x = 792,082.05 × 509,392.30
  4. Step 4: Simplify right side
    528,054.70x = 403,480,497,238.22
  5. Step 5: Solve for x
    x = 403,480,497,238.22/528,054.70
  6. Step 6: Final answer
    x = 764,088.45

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Similar ratio
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1.5x scale

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.