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Finding the Fourth Proportional to 508,070.84, 701,073.32 and 278,567.74

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Solution

The fourth proportional to 508,070.84, 701,073.32 and 278,567.74 is: 384,388.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,070.84 : 701,073.32 = 278,567.74 : x
  2. Step 2: Convert to fraction form
    508,070.84/701,073.32 = 278,567.74/x
  3. Step 3: Cross multiply
    508,070.84x = 701,073.32 × 278,567.74
  4. Step 4: Simplify right side
    508,070.84x = 195,296,410,326.70
  5. Step 5: Solve for x
    x = 195,296,410,326.70/508,070.84
  6. Step 6: Final answer
    x = 384,388.15

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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.