Home / 630,346.50-869,842.86-358,376.04

Finding the Fourth Proportional to 630,346.50, 869,842.86 and 358,376.04

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Solution

The fourth proportional to 630,346.50, 869,842.86 and 358,376.04 is: 494,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,346.50 : 869,842.86 = 358,376.04 : x
  2. Step 2: Convert to fraction form
    630,346.50/869,842.86 = 358,376.04/x
  3. Step 3: Cross multiply
    630,346.50x = 869,842.86 × 358,376.04
  4. Step 4: Simplify right side
    630,346.50x = 311,730,839,589.07
  5. Step 5: Solve for x
    x = 311,730,839,589.07/630,346.50
  6. Step 6: Final answer
    x = 494,538.86

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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.