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Finding the Fourth Proportional to 530,053.83, 731,461.19 and 303,684.75

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Solution

The fourth proportional to 530,053.83, 731,461.19 and 303,684.75 is: 419,077.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,053.83 : 731,461.19 = 303,684.75 : x
  2. Step 2: Convert to fraction form
    530,053.83/731,461.19 = 303,684.75/x
  3. Step 3: Cross multiply
    530,053.83x = 731,461.19 × 303,684.75
  4. Step 4: Simplify right side
    530,053.83x = 222,133,607,101.43
  5. Step 5: Solve for x
    x = 222,133,607,101.43/530,053.83
  6. Step 6: Final answer
    x = 419,077.45

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.