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Finding the Fourth Proportional to 558,017.76, 770,031.81 and 303,366.72

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Solution

The fourth proportional to 558,017.76, 770,031.81 and 303,366.72 is: 418,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,017.76 : 770,031.81 = 303,366.72 : x
  2. Step 2: Convert to fraction form
    558,017.76/770,031.81 = 303,366.72/x
  3. Step 3: Cross multiply
    558,017.76x = 770,031.81 × 303,366.72
  4. Step 4: Simplify right side
    558,017.76x = 233,602,024,495.36
  5. Step 5: Solve for x
    x = 233,602,024,495.36/558,017.76
  6. Step 6: Final answer
    x = 418,628.30

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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.