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Finding the Fourth Proportional to 530,739.68, 732,302.16 and 445,045.28

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Solution

The fourth proportional to 530,739.68, 732,302.16 and 445,045.28 is: 614,063.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,739.68 : 732,302.16 = 445,045.28 : x
  2. Step 2: Convert to fraction form
    530,739.68/732,302.16 = 445,045.28/x
  3. Step 3: Cross multiply
    530,739.68x = 732,302.16 × 445,045.28
  4. Step 4: Simplify right side
    530,739.68x = 325,907,619,841.81
  5. Step 5: Solve for x
    x = 325,907,619,841.81/530,739.68
  6. Step 6: Final answer
    x = 614,063.04

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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.