Home / 1,278,654.51-1,918,543.35-671,301.71

Finding the Fourth Proportional to 1,278,654.51, 1,918,543.35 and 671,301.71

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Solution

The fourth proportional to 1,278,654.51, 1,918,543.35 and 671,301.71 is: 1,007,247.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,654.51 : 1,918,543.35 = 671,301.71 : x
  2. Step 2: Convert to fraction form
    1,278,654.51/1,918,543.35 = 671,301.71/x
  3. Step 3: Cross multiply
    1,278,654.51x = 1,918,543.35 × 671,301.71
  4. Step 4: Simplify right side
    1,278,654.51x = 1,287,921,426,287.43
  5. Step 5: Solve for x
    x = 1,287,921,426,287.43/1,278,654.51
  6. Step 6: Final answer
    x = 1,007,247.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.