Home / 448,439.13-671,911.23-315,080.58

Finding the Fourth Proportional to 448,439.13, 671,911.23 and 315,080.58

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Solution

The fourth proportional to 448,439.13, 671,911.23 and 315,080.58 is: 472,095.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,439.13 : 671,911.23 = 315,080.58 : x
  2. Step 2: Convert to fraction form
    448,439.13/671,911.23 = 315,080.58/x
  3. Step 3: Cross multiply
    448,439.13x = 671,911.23 × 315,080.58
  4. Step 4: Simplify right side
    448,439.13x = 211,706,180,056.91
  5. Step 5: Solve for x
    x = 211,706,180,056.91/448,439.13
  6. Step 6: Final answer
    x = 472,095.69

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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.