Home / 877,984.78-1,316,073.21-345,289.90

Finding the Fourth Proportional to 877,984.78, 1,316,073.21 and 345,289.90

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Solution

The fourth proportional to 877,984.78, 1,316,073.21 and 345,289.90 is: 517,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,984.78 : 1,316,073.21 = 345,289.90 : x
  2. Step 2: Convert to fraction form
    877,984.78/1,316,073.21 = 345,289.90/x
  3. Step 3: Cross multiply
    877,984.78x = 1,316,073.21 × 345,289.90
  4. Step 4: Simplify right side
    877,984.78x = 454,426,787,073.58
  5. Step 5: Solve for x
    x = 454,426,787,073.58/877,984.78
  6. Step 6: Final answer
    x = 517,579.34

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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.