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Finding the Fourth Proportional to 635,435.19, 876,681.27 and 406,126.67

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Solution

The fourth proportional to 635,435.19, 876,681.27 and 406,126.67 is: 560,314.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,435.19 : 876,681.27 = 406,126.67 : x
  2. Step 2: Convert to fraction form
    635,435.19/876,681.27 = 406,126.67/x
  3. Step 3: Cross multiply
    635,435.19x = 876,681.27 × 406,126.67
  4. Step 4: Simplify right side
    635,435.19x = 356,043,640,453.07
  5. Step 5: Solve for x
    x = 356,043,640,453.07/635,435.19
  6. Step 6: Final answer
    x = 560,314.64

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Double scale
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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.