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Finding the Fourth Proportional to 552,347.68, 762,267.36 and 310,706.32

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Solution

The fourth proportional to 552,347.68, 762,267.36 and 310,706.32 is: 428,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,347.68 : 762,267.36 = 310,706.32 : x
  2. Step 2: Convert to fraction form
    552,347.68/762,267.36 = 310,706.32/x
  3. Step 3: Cross multiply
    552,347.68x = 762,267.36 × 310,706.32
  4. Step 4: Simplify right side
    552,347.68x = 236,841,286,281.72
  5. Step 5: Solve for x
    x = 236,841,286,281.72/552,347.68
  6. Step 6: Final answer
    x = 428,790.23

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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.