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Finding the Fourth Proportional to 520,865.36, 718,809.36 and 294,506

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Solution

The fourth proportional to 520,865.36, 718,809.36 and 294,506 is: 406,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,865.36 : 718,809.36 = 294,506 : x
  2. Step 2: Convert to fraction form
    520,865.36/718,809.36 = 294,506/x
  3. Step 3: Cross multiply
    520,865.36x = 718,809.36 × 294,506
  4. Step 4: Simplify right side
    520,865.36x = 211,693,669,376.16
  5. Step 5: Solve for x
    x = 211,693,669,376.16/520,865.36
  6. Step 6: Final answer
    x = 406,426.85

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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.