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Finding the Fourth Proportional to 552,328.84, 762,206.54 and 310,611.34

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Solution

The fourth proportional to 552,328.84, 762,206.54 and 310,611.34 is: 428,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,328.84 : 762,206.54 = 310,611.34 : x
  2. Step 2: Convert to fraction form
    552,328.84/762,206.54 = 310,611.34/x
  3. Step 3: Cross multiply
    552,328.84x = 762,206.54 × 310,611.34
  4. Step 4: Simplify right side
    552,328.84x = 236,749,994,746.16
  5. Step 5: Solve for x
    x = 236,749,994,746.16/552,328.84
  6. Step 6: Final answer
    x = 428,639.57

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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.