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Finding the Fourth Proportional to 657,107.45, 907,218.80 and 503,851.22

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Solution

The fourth proportional to 657,107.45, 907,218.80 and 503,851.22 is: 695,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,107.45 : 907,218.80 = 503,851.22 : x
  2. Step 2: Convert to fraction form
    657,107.45/907,218.80 = 503,851.22/x
  3. Step 3: Cross multiply
    657,107.45x = 907,218.80 × 503,851.22
  4. Step 4: Simplify right side
    657,107.45x = 457,103,299,186.94
  5. Step 5: Solve for x
    x = 457,103,299,186.94/657,107.45
  6. Step 6: Final answer
    x = 695,629.46

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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.