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Finding the Fourth Proportional to 657,300.88, 907,059.90 and 370,813.60

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Solution

The fourth proportional to 657,300.88, 907,059.90 and 370,813.60 is: 511,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,300.88 : 907,059.90 = 370,813.60 : x
  2. Step 2: Convert to fraction form
    657,300.88/907,059.90 = 370,813.60/x
  3. Step 3: Cross multiply
    657,300.88x = 907,059.90 × 370,813.60
  4. Step 4: Simplify right side
    657,300.88x = 336,350,146,934.64
  5. Step 5: Solve for x
    x = 336,350,146,934.64/657,300.88
  6. Step 6: Final answer
    x = 511,714.13

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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.