Home / 890,398.20-1,228,747.14-482,511.36

Finding the Fourth Proportional to 890,398.20, 1,228,747.14 and 482,511.36

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Solution

The fourth proportional to 890,398.20, 1,228,747.14 and 482,511.36 is: 665,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,398.20 : 1,228,747.14 = 482,511.36 : x
  2. Step 2: Convert to fraction form
    890,398.20/1,228,747.14 = 482,511.36/x
  3. Step 3: Cross multiply
    890,398.20x = 1,228,747.14 × 482,511.36
  4. Step 4: Simplify right side
    890,398.20x = 592,884,453,617.51
  5. Step 5: Solve for x
    x = 592,884,453,617.51/890,398.20
  6. Step 6: Final answer
    x = 665,864.39

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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.