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Finding the Fourth Proportional to 651,131.40, 975,530.70 and 401,521.80

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Solution

The fourth proportional to 651,131.40, 975,530.70 and 401,521.80 is: 601,563.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,131.40 : 975,530.70 = 401,521.80 : x
  2. Step 2: Convert to fraction form
    651,131.40/975,530.70 = 401,521.80/x
  3. Step 3: Cross multiply
    651,131.40x = 975,530.70 × 401,521.80
  4. Step 4: Simplify right side
    651,131.40x = 391,696,842,619.26
  5. Step 5: Solve for x
    x = 391,696,842,619.26/651,131.40
  6. Step 6: Final answer
    x = 601,563.44

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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.