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Finding the Fourth Proportional to 561,700.40, 842,550.60 and 558,201.20

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Solution

The fourth proportional to 561,700.40, 842,550.60 and 558,201.20 is: 837,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,700.40 : 842,550.60 = 558,201.20 : x
  2. Step 2: Convert to fraction form
    561,700.40/842,550.60 = 558,201.20/x
  3. Step 3: Cross multiply
    561,700.40x = 842,550.60 × 558,201.20
  4. Step 4: Simplify right side
    561,700.40x = 470,312,755,980.72
  5. Step 5: Solve for x
    x = 470,312,755,980.72/561,700.40
  6. Step 6: Final answer
    x = 837,301.80

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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.