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Finding the Fourth Proportional to 657,655.65, 986,483.48 and 303,361.65

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Solution

The fourth proportional to 657,655.65, 986,483.48 and 303,361.65 is: 455,042.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,655.65 : 986,483.48 = 303,361.65 : x
  2. Step 2: Convert to fraction form
    657,655.65/986,483.48 = 303,361.65/x
  3. Step 3: Cross multiply
    657,655.65x = 986,483.48 × 303,361.65
  4. Step 4: Simplify right side
    657,655.65x = 299,261,254,673.73
  5. Step 5: Solve for x
    x = 299,261,254,673.73/657,655.65
  6. Step 6: Final answer
    x = 455,042.48

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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.