Home / 877,904.36-1,316,961.95-309,167.83

Finding the Fourth Proportional to 877,904.36, 1,316,961.95 and 309,167.83

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Solution

The fourth proportional to 877,904.36, 1,316,961.95 and 309,167.83 is: 463,788.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,904.36 : 1,316,961.95 = 309,167.83 : x
  2. Step 2: Convert to fraction form
    877,904.36/1,316,961.95 = 309,167.83/x
  3. Step 3: Cross multiply
    877,904.36x = 1,316,961.95 × 309,167.83
  4. Step 4: Simplify right side
    877,904.36x = 407,162,265,174.89
  5. Step 5: Solve for x
    x = 407,162,265,174.89/877,904.36
  6. Step 6: Final answer
    x = 463,788.87

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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.