Home / 530,251.37-731,734.93-288,534.61

Finding the Fourth Proportional to 530,251.37, 731,734.93 and 288,534.61

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Solution

The fourth proportional to 530,251.37, 731,734.93 and 288,534.61 is: 398,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,251.37 : 731,734.93 = 288,534.61 : x
  2. Step 2: Convert to fraction form
    530,251.37/731,734.93 = 288,534.61/x
  3. Step 3: Cross multiply
    530,251.37x = 731,734.93 × 288,534.61
  4. Step 4: Simplify right side
    530,251.37x = 211,130,852,650.93
  5. Step 5: Solve for x
    x = 211,130,852,650.93/530,251.37
  6. Step 6: Final answer
    x = 398,171.25

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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.