Home / 877,904.98-1,316,962.89-309,168.45

Finding the Fourth Proportional to 877,904.98, 1,316,962.89 and 309,168.45

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Solution

The fourth proportional to 877,904.98, 1,316,962.89 and 309,168.45 is: 463,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,904.98 : 1,316,962.89 = 309,168.45 : x
  2. Step 2: Convert to fraction form
    877,904.98/1,316,962.89 = 309,168.45/x
  3. Step 3: Cross multiply
    877,904.98x = 1,316,962.89 × 309,168.45
  4. Step 4: Simplify right side
    877,904.98x = 407,163,375,408.82
  5. Step 5: Solve for x
    x = 407,163,375,408.82/877,904.98
  6. Step 6: Final answer
    x = 463,789.80

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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.