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Finding the Fourth Proportional to 1,249,780, 1,874,989.68 and 363,316

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Solution

The fourth proportional to 1,249,780, 1,874,989.68 and 363,316 is: 545,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,780 : 1,874,989.68 = 363,316 : x
  2. Step 2: Convert to fraction form
    1,249,780/1,874,989.68 = 363,316/x
  3. Step 3: Cross multiply
    1,249,780x = 1,874,989.68 × 363,316
  4. Step 4: Simplify right side
    1,249,780x = 681,213,750,578.88
  5. Step 5: Solve for x
    x = 681,213,750,578.88/1,249,780
  6. Step 6: Final answer
    x = 545,066.93

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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.