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Finding the Fourth Proportional to 620,830.72, 931,596.08 and 616,087.36

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Solution

The fourth proportional to 620,830.72, 931,596.08 and 616,087.36 is: 924,478.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,830.72 : 931,596.08 = 616,087.36 : x
  2. Step 2: Convert to fraction form
    620,830.72/931,596.08 = 616,087.36/x
  3. Step 3: Cross multiply
    620,830.72x = 931,596.08 × 616,087.36
  4. Step 4: Simplify right side
    620,830.72x = 573,944,569,513.55
  5. Step 5: Solve for x
    x = 573,944,569,513.55/620,830.72
  6. Step 6: Final answer
    x = 924,478.37

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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.