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Finding the Fourth Proportional to 914,901, 1,262,611.89 and 507,047.34

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Solution

The fourth proportional to 914,901, 1,262,611.89 and 507,047.34 is: 699,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,901 : 1,262,611.89 = 507,047.34 : x
  2. Step 2: Convert to fraction form
    914,901/1,262,611.89 = 507,047.34/x
  3. Step 3: Cross multiply
    914,901x = 1,262,611.89 × 507,047.34
  4. Step 4: Simplify right side
    914,901x = 640,204,000,276.87
  5. Step 5: Solve for x
    x = 640,204,000,276.87/914,901
  6. Step 6: Final answer
    x = 699,752.21

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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.