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Finding the Fourth Proportional to 657,265.76, 907,068.76 and 370,681.28

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Solution

The fourth proportional to 657,265.76, 907,068.76 and 370,681.28 is: 511,563.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,265.76 : 907,068.76 = 370,681.28 : x
  2. Step 2: Convert to fraction form
    657,265.76/907,068.76 = 370,681.28/x
  3. Step 3: Cross multiply
    657,265.76x = 907,068.76 × 370,681.28
  4. Step 4: Simplify right side
    657,265.76x = 336,233,409,004.81
  5. Step 5: Solve for x
    x = 336,233,409,004.81/657,265.76
  6. Step 6: Final answer
    x = 511,563.86

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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.