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Finding the Fourth Proportional to 657,426.24, 907,303.68 and 370,958.40

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Solution

The fourth proportional to 657,426.24, 907,303.68 and 370,958.40 is: 511,953.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,426.24 : 907,303.68 = 370,958.40 : x
  2. Step 2: Convert to fraction form
    657,426.24/907,303.68 = 370,958.40/x
  3. Step 3: Cross multiply
    657,426.24x = 907,303.68 × 370,958.40
  4. Step 4: Simplify right side
    657,426.24x = 336,571,921,446.91
  5. Step 5: Solve for x
    x = 336,571,921,446.91/657,426.24
  6. Step 6: Final answer
    x = 511,953.89

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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.