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Finding the Fourth Proportional to 520,809.03, 718,631.46 and 303,066.45

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Solution

The fourth proportional to 520,809.03, 718,631.46 and 303,066.45 is: 418,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,809.03 : 718,631.46 = 303,066.45 : x
  2. Step 2: Convert to fraction form
    520,809.03/718,631.46 = 303,066.45/x
  3. Step 3: Cross multiply
    520,809.03x = 718,631.46 × 303,066.45
  4. Step 4: Simplify right side
    520,809.03x = 217,793,085,440.52
  5. Step 5: Solve for x
    x = 217,793,085,440.52/520,809.03
  6. Step 6: Final answer
    x = 418,182.24

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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.