Home / 432,436.12-648,656.47-283,618.80

Finding the Fourth Proportional to 432,436.12, 648,656.47 and 283,618.80

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Solution

The fourth proportional to 432,436.12, 648,656.47 and 283,618.80 is: 425,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,436.12 : 648,656.47 = 283,618.80 : x
  2. Step 2: Convert to fraction form
    432,436.12/648,656.47 = 283,618.80/x
  3. Step 3: Cross multiply
    432,436.12x = 648,656.47 × 283,618.80
  4. Step 4: Simplify right side
    432,436.12x = 183,971,169,988.16
  5. Step 5: Solve for x
    x = 183,971,169,988.16/432,436.12
  6. Step 6: Final answer
    x = 425,429.71

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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.