Home / 899,108.54-1,348,857.21-478,323.26

Finding the Fourth Proportional to 899,108.54, 1,348,857.21 and 478,323.26

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Solution

The fourth proportional to 899,108.54, 1,348,857.21 and 478,323.26 is: 717,588.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,108.54 : 1,348,857.21 = 478,323.26 : x
  2. Step 2: Convert to fraction form
    899,108.54/1,348,857.21 = 478,323.26/x
  3. Step 3: Cross multiply
    899,108.54x = 1,348,857.21 × 478,323.26
  4. Step 4: Simplify right side
    899,108.54x = 645,189,777,961.71
  5. Step 5: Solve for x
    x = 645,189,777,961.71/899,108.54
  6. Step 6: Final answer
    x = 717,588.31

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Double scale
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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.