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Finding the Fourth Proportional to 530,427.21, 732,005.42 and 326,595.75

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Solution

The fourth proportional to 530,427.21, 732,005.42 and 326,595.75 is: 450,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,427.21 : 732,005.42 = 326,595.75 : x
  2. Step 2: Convert to fraction form
    530,427.21/732,005.42 = 326,595.75/x
  3. Step 3: Cross multiply
    530,427.21x = 732,005.42 × 326,595.75
  4. Step 4: Simplify right side
    530,427.21x = 239,069,859,148.97
  5. Step 5: Solve for x
    x = 239,069,859,148.97/530,427.21
  6. Step 6: Final answer
    x = 450,711.91

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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.