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Finding the Fourth Proportional to 530,435.42, 732,016.36 and 288,733.58

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Solution

The fourth proportional to 530,435.42, 732,016.36 and 288,733.58 is: 398,460.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,435.42 : 732,016.36 = 288,733.58 : x
  2. Step 2: Convert to fraction form
    530,435.42/732,016.36 = 288,733.58/x
  3. Step 3: Cross multiply
    530,435.42x = 732,016.36 × 288,733.58
  4. Step 4: Simplify right side
    530,435.42x = 211,357,704,241.37
  5. Step 5: Solve for x
    x = 211,357,704,241.37/530,435.42
  6. Step 6: Final answer
    x = 398,460.77

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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.