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Finding the Fourth Proportional to 614,467.40, 921,701.10 and 610,530.80

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Solution

The fourth proportional to 614,467.40, 921,701.10 and 610,530.80 is: 915,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,467.40 : 921,701.10 = 610,530.80 : x
  2. Step 2: Convert to fraction form
    614,467.40/921,701.10 = 610,530.80/x
  3. Step 3: Cross multiply
    614,467.40x = 921,701.10 × 610,530.80
  4. Step 4: Simplify right side
    614,467.40x = 562,726,909,943.88
  5. Step 5: Solve for x
    x = 562,726,909,943.88/614,467.40
  6. Step 6: Final answer
    x = 915,796.20

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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.