Home / 718,748.40-1,077,971.40-363,428.40

Finding the Fourth Proportional to 718,748.40, 1,077,971.40 and 363,428.40

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Solution

The fourth proportional to 718,748.40, 1,077,971.40 and 363,428.40 is: 545,066.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,748.40 : 1,077,971.40 = 363,428.40 : x
  2. Step 2: Convert to fraction form
    718,748.40/1,077,971.40 = 363,428.40/x
  3. Step 3: Cross multiply
    718,748.40x = 1,077,971.40 × 363,428.40
  4. Step 4: Simplify right side
    718,748.40x = 391,765,421,147.76
  5. Step 5: Solve for x
    x = 391,765,421,147.76/718,748.40
  6. Step 6: Final answer
    x = 545,066.15

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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.