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Finding the Fourth Proportional to 283,643.80, 425,465.70 and 276,645.40

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Solution

The fourth proportional to 283,643.80, 425,465.70 and 276,645.40 is: 414,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,643.80 : 425,465.70 = 276,645.40 : x
  2. Step 2: Convert to fraction form
    283,643.80/425,465.70 = 276,645.40/x
  3. Step 3: Cross multiply
    283,643.80x = 425,465.70 × 276,645.40
  4. Step 4: Simplify right side
    283,643.80x = 117,703,128,762.78
  5. Step 5: Solve for x
    x = 117,703,128,762.78/283,643.80
  6. Step 6: Final answer
    x = 414,968.10

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1.5x scale

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.