Home / 890,280.77-1,228,588.70-482,387.04

Finding the Fourth Proportional to 890,280.77, 1,228,588.70 and 482,387.04

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Solution

The fourth proportional to 890,280.77, 1,228,588.70 and 482,387.04 is: 665,694.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,280.77 : 1,228,588.70 = 482,387.04 : x
  2. Step 2: Convert to fraction form
    890,280.77/1,228,588.70 = 482,387.04/x
  3. Step 3: Cross multiply
    890,280.77x = 1,228,588.70 × 482,387.04
  4. Step 4: Simplify right side
    890,280.77x = 592,655,263,958.51
  5. Step 5: Solve for x
    x = 592,655,263,958.51/890,280.77
  6. Step 6: Final answer
    x = 665,694.79

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Double scale
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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.