Home / 676,742.43-933,842.44-390,207.16

Finding the Fourth Proportional to 676,742.43, 933,842.44 and 390,207.16

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Solution

The fourth proportional to 676,742.43, 933,842.44 and 390,207.16 is: 538,450.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,742.43 : 933,842.44 = 390,207.16 : x
  2. Step 2: Convert to fraction form
    676,742.43/933,842.44 = 390,207.16/x
  3. Step 3: Cross multiply
    676,742.43x = 933,842.44 × 390,207.16
  4. Step 4: Simplify right side
    676,742.43x = 364,392,006,399.87
  5. Step 5: Solve for x
    x = 364,392,006,399.87/676,742.43
  6. Step 6: Final answer
    x = 538,450.07

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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.