Home / 650,905.20-976,933.80-384,332.40

Finding the Fourth Proportional to 650,905.20, 976,933.80 and 384,332.40

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Solution

The fourth proportional to 650,905.20, 976,933.80 and 384,332.40 is: 576,838.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,905.20 : 976,933.80 = 384,332.40 : x
  2. Step 2: Convert to fraction form
    650,905.20/976,933.80 = 384,332.40/x
  3. Step 3: Cross multiply
    650,905.20x = 976,933.80 × 384,332.40
  4. Step 4: Simplify right side
    650,905.20x = 375,467,311,995.12
  5. Step 5: Solve for x
    x = 375,467,311,995.12/650,905.20
  6. Step 6: Final answer
    x = 576,838.70

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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.