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Finding the Fourth Proportional to 612,472.40, 845,303.88 and 440,958.08

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Solution

The fourth proportional to 612,472.40, 845,303.88 and 440,958.08 is: 608,588.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,472.40 : 845,303.88 = 440,958.08 : x
  2. Step 2: Convert to fraction form
    612,472.40/845,303.88 = 440,958.08/x
  3. Step 3: Cross multiply
    612,472.40x = 845,303.88 × 440,958.08
  4. Step 4: Simplify right side
    612,472.40x = 372,743,575,941.35
  5. Step 5: Solve for x
    x = 372,743,575,941.35/612,472.40
  6. Step 6: Final answer
    x = 608,588.36

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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.