Home / 490,283.15-676,396.18-283,513.32

Finding the Fourth Proportional to 490,283.15, 676,396.18 and 283,513.32

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Solution

The fourth proportional to 490,283.15, 676,396.18 and 283,513.32 is: 391,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,283.15 : 676,396.18 = 283,513.32 : x
  2. Step 2: Convert to fraction form
    490,283.15/676,396.18 = 283,513.32/x
  3. Step 3: Cross multiply
    490,283.15x = 676,396.18 × 283,513.32
  4. Step 4: Simplify right side
    490,283.15x = 191,767,326,981.51
  5. Step 5: Solve for x
    x = 191,767,326,981.51/490,283.15
  6. Step 6: Final answer
    x = 391,135.88

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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.