Home / 649,821.17-975,210.72-308,265.68

Finding the Fourth Proportional to 649,821.17, 975,210.72 and 308,265.68

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Solution

The fourth proportional to 649,821.17, 975,210.72 and 308,265.68 is: 462,625.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,821.17 : 975,210.72 = 308,265.68 : x
  2. Step 2: Convert to fraction form
    649,821.17/975,210.72 = 308,265.68/x
  3. Step 3: Cross multiply
    649,821.17x = 975,210.72 × 308,265.68
  4. Step 4: Simplify right side
    649,821.17x = 300,623,997,028.16
  5. Step 5: Solve for x
    x = 300,623,997,028.16/649,821.17
  6. Step 6: Final answer
    x = 462,625.73

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Double scale
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Similar ratio
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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.