Home / 764,089.20-1,144,821.60-497,712.60

Finding the Fourth Proportional to 764,089.20, 1,144,821.60 and 497,712.60

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Solution

The fourth proportional to 764,089.20, 1,144,821.60 and 497,712.60 is: 745,714.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,089.20 : 1,144,821.60 = 497,712.60 : x
  2. Step 2: Convert to fraction form
    764,089.20/1,144,821.60 = 497,712.60/x
  3. Step 3: Cross multiply
    764,089.20x = 1,144,821.60 × 497,712.60
  4. Step 4: Simplify right side
    764,089.20x = 569,792,135,072.16
  5. Step 5: Solve for x
    x = 569,792,135,072.16/764,089.20
  6. Step 6: Final answer
    x = 745,714.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.