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Finding the Fourth Proportional to 530,453.60, 732,040.10 and 288,752.43

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Solution

The fourth proportional to 530,453.60, 732,040.10 and 288,752.43 is: 398,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,453.60 : 732,040.10 = 288,752.43 : x
  2. Step 2: Convert to fraction form
    530,453.60/732,040.10 = 288,752.43/x
  3. Step 3: Cross multiply
    530,453.60x = 732,040.10 × 288,752.43
  4. Step 4: Simplify right side
    530,453.60x = 211,378,357,732.44
  5. Step 5: Solve for x
    x = 211,378,357,732.44/530,453.60
  6. Step 6: Final answer
    x = 398,486.05

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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.