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Finding the Fourth Proportional to 617,664.02, 851,607.68 and 472,649.51

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Solution

The fourth proportional to 617,664.02, 851,607.68 and 472,649.51 is: 651,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,664.02 : 851,607.68 = 472,649.51 : x
  2. Step 2: Convert to fraction form
    617,664.02/851,607.68 = 472,649.51/x
  3. Step 3: Cross multiply
    617,664.02x = 851,607.68 × 472,649.51
  4. Step 4: Simplify right side
    617,664.02x = 402,511,952,430.01
  5. Step 5: Solve for x
    x = 402,511,952,430.01/617,664.02
  6. Step 6: Final answer
    x = 651,668.13

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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.