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Finding the Fourth Proportional to 537,322.80, 807,733.80 and 380,636.40

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Solution

The fourth proportional to 537,322.80, 807,733.80 and 380,636.40 is: 572,194.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,322.80 : 807,733.80 = 380,636.40 : x
  2. Step 2: Convert to fraction form
    537,322.80/807,733.80 = 380,636.40/x
  3. Step 3: Cross multiply
    537,322.80x = 807,733.80 × 380,636.40
  4. Step 4: Simplify right side
    537,322.80x = 307,452,885,790.32
  5. Step 5: Solve for x
    x = 307,452,885,790.32/537,322.80
  6. Step 6: Final answer
    x = 572,194.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.