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Finding the Fourth Proportional to 558,054.67, 770,120.85 and 303,411.28

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Solution

The fourth proportional to 558,054.67, 770,120.85 and 303,411.28 is: 418,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,054.67 : 770,120.85 = 303,411.28 : x
  2. Step 2: Convert to fraction form
    558,054.67/770,120.85 = 303,411.28/x
  3. Step 3: Cross multiply
    558,054.67x = 770,120.85 × 303,411.28
  4. Step 4: Simplify right side
    558,054.67x = 233,663,352,853.19
  5. Step 5: Solve for x
    x = 233,663,352,853.19/558,054.67
  6. Step 6: Final answer
    x = 418,710.51

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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.