Home / 487,538.45-672,799.18-272,678.34

Finding the Fourth Proportional to 487,538.45, 672,799.18 and 272,678.34

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Solution

The fourth proportional to 487,538.45, 672,799.18 and 272,678.34 is: 376,293.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,538.45 : 672,799.18 = 272,678.34 : x
  2. Step 2: Convert to fraction form
    487,538.45/672,799.18 = 272,678.34/x
  3. Step 3: Cross multiply
    487,538.45x = 672,799.18 × 272,678.34
  4. Step 4: Simplify right side
    487,538.45x = 183,457,762,192.37
  5. Step 5: Solve for x
    x = 183,457,762,192.37/487,538.45
  6. Step 6: Final answer
    x = 376,293.94

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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.