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Finding the Fourth Proportional to 530,872.20, 745,320.60 and 530,872.20

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Solution

The fourth proportional to 530,872.20, 745,320.60 and 530,872.20 is: 745,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,872.20 : 745,320.60 = 530,872.20 : x
  2. Step 2: Convert to fraction form
    530,872.20/745,320.60 = 530,872.20/x
  3. Step 3: Cross multiply
    530,872.20x = 745,320.60 × 530,872.20
  4. Step 4: Simplify right side
    530,872.20x = 395,669,986,627.32
  5. Step 5: Solve for x
    x = 395,669,986,627.32/530,872.20
  6. Step 6: Final answer
    x = 745,320.60

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.