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Finding the Fourth Proportional to 670,019.73, 924,751.79 and 383,539.83

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Solution

The fourth proportional to 670,019.73, 924,751.79 and 383,539.83 is: 529,356.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,019.73 : 924,751.79 = 383,539.83 : x
  2. Step 2: Convert to fraction form
    670,019.73/924,751.79 = 383,539.83/x
  3. Step 3: Cross multiply
    670,019.73x = 924,751.79 × 383,539.83
  4. Step 4: Simplify right side
    670,019.73x = 354,679,144,328.80
  5. Step 5: Solve for x
    x = 354,679,144,328.80/670,019.73
  6. Step 6: Final answer
    x = 529,356.27

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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.