Home / 890,990.58-1,229,572.47-483,088.86

Finding the Fourth Proportional to 890,990.58, 1,229,572.47 and 483,088.86

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Solution

The fourth proportional to 890,990.58, 1,229,572.47 and 483,088.86 is: 666,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,990.58 : 1,229,572.47 = 483,088.86 : x
  2. Step 2: Convert to fraction form
    890,990.58/1,229,572.47 = 483,088.86/x
  3. Step 3: Cross multiply
    890,990.58x = 1,229,572.47 × 483,088.86
  4. Step 4: Simplify right side
    890,990.58x = 593,992,762,819.68
  5. Step 5: Solve for x
    x = 593,992,762,819.68/890,990.58
  6. Step 6: Final answer
    x = 666,665.59

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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.