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Finding the Fourth Proportional to 620,870.10, 930,526.40 and 265,466.94

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Solution

The fourth proportional to 620,870.10, 930,526.40 and 265,466.94 is: 397,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,870.10 : 930,526.40 = 265,466.94 : x
  2. Step 2: Convert to fraction form
    620,870.10/930,526.40 = 265,466.94/x
  3. Step 3: Cross multiply
    620,870.10x = 930,526.40 × 265,466.94
  4. Step 4: Simplify right side
    620,870.10x = 247,023,995,997.22
  5. Step 5: Solve for x
    x = 247,023,995,997.22/620,870.10
  6. Step 6: Final answer
    x = 397,867.44

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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.