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Finding the Fourth Proportional to 528,550.83, 729,405.50 and 286,835.49

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Solution

The fourth proportional to 528,550.83, 729,405.50 and 286,835.49 is: 395,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,550.83 : 729,405.50 = 286,835.49 : x
  2. Step 2: Convert to fraction form
    528,550.83/729,405.50 = 286,835.49/x
  3. Step 3: Cross multiply
    528,550.83x = 729,405.50 × 286,835.49
  4. Step 4: Simplify right side
    528,550.83x = 209,219,382,567.02
  5. Step 5: Solve for x
    x = 209,219,382,567.02/528,550.83
  6. Step 6: Final answer
    x = 395,835.88

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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.