Home / 877,978.28-1,316,362.23-345,560.44

Finding the Fourth Proportional to 877,978.28, 1,316,362.23 and 345,560.44

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Solution

The fourth proportional to 877,978.28, 1,316,362.23 and 345,560.44 is: 518,102.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,978.28 : 1,316,362.23 = 345,560.44 : x
  2. Step 2: Convert to fraction form
    877,978.28/1,316,362.23 = 345,560.44/x
  3. Step 3: Cross multiply
    877,978.28x = 1,316,362.23 × 345,560.44
  4. Step 4: Simplify right side
    877,978.28x = 454,882,711,398.18
  5. Step 5: Solve for x
    x = 454,882,711,398.18/877,978.28
  6. Step 6: Final answer
    x = 518,102.47

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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.