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Finding the Fourth Proportional to 620,020.50, 930,089.52 and 240,970.47

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Solution

The fourth proportional to 620,020.50, 930,089.52 and 240,970.47 is: 361,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,020.50 : 930,089.52 = 240,970.47 : x
  2. Step 2: Convert to fraction form
    620,020.50/930,089.52 = 240,970.47/x
  3. Step 3: Cross multiply
    620,020.50x = 930,089.52 × 240,970.47
  4. Step 4: Simplify right side
    620,020.50x = 224,124,108,776.47
  5. Step 5: Solve for x
    x = 224,124,108,776.47/620,020.50
  6. Step 6: Final answer
    x = 361,478.55

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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.