Home / 512,975.64-707,904.90-286,621.32

Finding the Fourth Proportional to 512,975.64, 707,904.90 and 286,621.32

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Solution

The fourth proportional to 512,975.64, 707,904.90 and 286,621.32 is: 395,536.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,975.64 : 707,904.90 = 286,621.32 : x
  2. Step 2: Convert to fraction form
    512,975.64/707,904.90 = 286,621.32/x
  3. Step 3: Cross multiply
    512,975.64x = 707,904.90 × 286,621.32
  4. Step 4: Simplify right side
    512,975.64x = 202,900,636,872.47
  5. Step 5: Solve for x
    x = 202,900,636,872.47/512,975.64
  6. Step 6: Final answer
    x = 395,536.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.