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Finding the Fourth Proportional to 530,550.60, 732,135.96 and 288,827

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Solution

The fourth proportional to 530,550.60, 732,135.96 and 288,827 is: 398,568.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,550.60 : 732,135.96 = 288,827 : x
  2. Step 2: Convert to fraction form
    530,550.60/732,135.96 = 288,827/x
  3. Step 3: Cross multiply
    530,550.60x = 732,135.96 × 288,827
  4. Step 4: Simplify right side
    530,550.60x = 211,460,632,918.92
  5. Step 5: Solve for x
    x = 211,460,632,918.92/530,550.60
  6. Step 6: Final answer
    x = 398,568.27

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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.