Home / 877,904.73-1,316,962.52-309,168.21

Finding the Fourth Proportional to 877,904.73, 1,316,962.52 and 309,168.21

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Solution

The fourth proportional to 877,904.73, 1,316,962.52 and 309,168.21 is: 463,789.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,904.73 : 1,316,962.52 = 309,168.21 : x
  2. Step 2: Convert to fraction form
    877,904.73/1,316,962.52 = 309,168.21/x
  3. Step 3: Cross multiply
    877,904.73x = 1,316,962.52 × 309,168.21
  4. Step 4: Simplify right side
    877,904.73x = 407,162,936,814.84
  5. Step 5: Solve for x
    x = 407,162,936,814.84/877,904.73
  6. Step 6: Final answer
    x = 463,789.43

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1.5x scale

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.