Home / 890,412.48-1,228,707.36-527,817.60

Finding the Fourth Proportional to 890,412.48, 1,228,707.36 and 527,817.60

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Solution

The fourth proportional to 890,412.48, 1,228,707.36 and 527,817.60 is: 728,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,412.48 : 1,228,707.36 = 527,817.60 : x
  2. Step 2: Convert to fraction form
    890,412.48/1,228,707.36 = 527,817.60/x
  3. Step 3: Cross multiply
    890,412.48x = 1,228,707.36 × 527,817.60
  4. Step 4: Simplify right side
    890,412.48x = 648,533,369,857.54
  5. Step 5: Solve for x
    x = 648,533,369,857.54/890,412.48
  6. Step 6: Final answer
    x = 728,351.62

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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.