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Finding the Fourth Proportional to 657,387.42, 907,237.44 and 370,802.94

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Solution

The fourth proportional to 657,387.42, 907,237.44 and 370,802.94 is: 511,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,387.42 : 907,237.44 = 370,802.94 : x
  2. Step 2: Convert to fraction form
    657,387.42/907,237.44 = 370,802.94/x
  3. Step 3: Cross multiply
    657,387.42x = 907,237.44 × 370,802.94
  4. Step 4: Simplify right side
    657,387.42x = 336,406,310,030.07
  5. Step 5: Solve for x
    x = 336,406,310,030.07/657,387.42
  6. Step 6: Final answer
    x = 511,732.20

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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.