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Finding the Fourth Proportional to 1,249,745.82, 1,724,646.60 and 676,784.22

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Solution

The fourth proportional to 1,249,745.82, 1,724,646.60 and 676,784.22 is: 933,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,745.82 : 1,724,646.60 = 676,784.22 : x
  2. Step 2: Convert to fraction form
    1,249,745.82/1,724,646.60 = 676,784.22/x
  3. Step 3: Cross multiply
    1,249,745.82x = 1,724,646.60 × 676,784.22
  4. Step 4: Simplify right side
    1,249,745.82x = 1,167,213,603,956.65
  5. Step 5: Solve for x
    x = 1,167,213,603,956.65/1,249,745.82
  6. Step 6: Final answer
    x = 933,960.80

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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.