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Finding the Fourth Proportional to 509,881.61, 703,637.21 and 283,522.25

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Solution

The fourth proportional to 509,881.61, 703,637.21 and 283,522.25 is: 391,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,881.61 : 703,637.21 = 283,522.25 : x
  2. Step 2: Convert to fraction form
    509,881.61/703,637.21 = 283,522.25/x
  3. Step 3: Cross multiply
    509,881.61x = 703,637.21 × 283,522.25
  4. Step 4: Simplify right side
    509,881.61x = 199,496,804,962.92
  5. Step 5: Solve for x
    x = 199,496,804,962.92/509,881.61
  6. Step 6: Final answer
    x = 391,261.03

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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.