Home / 630,222.87-869,781.08-358,331.50

Finding the Fourth Proportional to 630,222.87, 869,781.08 and 358,331.50

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Solution

The fourth proportional to 630,222.87, 869,781.08 and 358,331.50 is: 494,539.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,222.87 : 869,781.08 = 358,331.50 : x
  2. Step 2: Convert to fraction form
    630,222.87/869,781.08 = 358,331.50/x
  3. Step 3: Cross multiply
    630,222.87x = 869,781.08 × 358,331.50
  4. Step 4: Simplify right side
    630,222.87x = 311,669,959,068.02
  5. Step 5: Solve for x
    x = 311,669,959,068.02/630,222.87
  6. Step 6: Final answer
    x = 494,539.27

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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.