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Finding the Fourth Proportional to 802,922.63, 1,108,048.82 and 440,325.32

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Solution

The fourth proportional to 802,922.63, 1,108,048.82 and 440,325.32 is: 607,657.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,922.63 : 1,108,048.82 = 440,325.32 : x
  2. Step 2: Convert to fraction form
    802,922.63/1,108,048.82 = 440,325.32/x
  3. Step 3: Cross multiply
    802,922.63x = 1,108,048.82 × 440,325.32
  4. Step 4: Simplify right side
    802,922.63x = 487,901,943,500.25
  5. Step 5: Solve for x
    x = 487,901,943,500.25/802,922.63
  6. Step 6: Final answer
    x = 607,657.49

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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.