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Finding the Fourth Proportional to 657,130.01, 906,881.72 and 370,643.94

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Solution

The fourth proportional to 657,130.01, 906,881.72 and 370,643.94 is: 511,512.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,130.01 : 906,881.72 = 370,643.94 : x
  2. Step 2: Convert to fraction form
    657,130.01/906,881.72 = 370,643.94/x
  3. Step 3: Cross multiply
    657,130.01x = 906,881.72 × 370,643.94
  4. Step 4: Simplify right side
    657,130.01x = 336,130,211,961.56
  5. Step 5: Solve for x
    x = 336,130,211,961.56/657,130.01
  6. Step 6: Final answer
    x = 511,512.50

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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.