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Finding the Fourth Proportional to 530,437.18, 732,019.15 and 326,605.71

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Solution

The fourth proportional to 530,437.18, 732,019.15 and 326,605.71 is: 450,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,437.18 : 732,019.15 = 326,605.71 : x
  2. Step 2: Convert to fraction form
    530,437.18/732,019.15 = 326,605.71/x
  3. Step 3: Cross multiply
    530,437.18x = 732,019.15 × 326,605.71
  4. Step 4: Simplify right side
    530,437.18x = 239,081,633,205.81
  5. Step 5: Solve for x
    x = 239,081,633,205.81/530,437.18
  6. Step 6: Final answer
    x = 450,725.63

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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.