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Finding the Fourth Proportional to 558,058.72, 770,117.28 and 303,409.92

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Solution

The fourth proportional to 558,058.72, 770,117.28 and 303,409.92 is: 418,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,058.72 : 770,117.28 = 303,409.92 : x
  2. Step 2: Convert to fraction form
    558,058.72/770,117.28 = 303,409.92/x
  3. Step 3: Cross multiply
    558,058.72x = 770,117.28 × 303,409.92
  4. Step 4: Simplify right side
    558,058.72x = 233,661,222,315.42
  5. Step 5: Solve for x
    x = 233,661,222,315.42/558,058.72
  6. Step 6: Final answer
    x = 418,703.65

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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.