Home / 877,903.98-1,316,961.39-309,167.45

Finding the Fourth Proportional to 877,903.98, 1,316,961.39 and 309,167.45

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Solution

The fourth proportional to 877,903.98, 1,316,961.39 and 309,167.45 is: 463,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,903.98 : 1,316,961.39 = 309,167.45 : x
  2. Step 2: Convert to fraction form
    877,903.98/1,316,961.39 = 309,167.45/x
  3. Step 3: Cross multiply
    877,903.98x = 1,316,961.39 × 309,167.45
  4. Step 4: Simplify right side
    877,903.98x = 407,161,597,987.16
  5. Step 5: Solve for x
    x = 407,161,597,987.16/877,903.98
  6. Step 6: Final answer
    x = 463,788.30

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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.