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Finding the Fourth Proportional to 425,389.80, 587,050.45 and 234,415.49

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Solution

The fourth proportional to 425,389.80, 587,050.45 and 234,415.49 is: 323,500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,389.80 : 587,050.45 = 234,415.49 : x
  2. Step 2: Convert to fraction form
    425,389.80/587,050.45 = 234,415.49/x
  3. Step 3: Cross multiply
    425,389.80x = 587,050.45 × 234,415.49
  4. Step 4: Simplify right side
    425,389.80x = 137,613,718,891.47
  5. Step 5: Solve for x
    x = 137,613,718,891.47/425,389.80
  6. Step 6: Final answer
    x = 323,500.28

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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.