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Finding the Fourth Proportional to 1,249,894.72, 1,724,846.11 and 676,923.40

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Solution

The fourth proportional to 1,249,894.72, 1,724,846.11 and 676,923.40 is: 934,149.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,894.72 : 1,724,846.11 = 676,923.40 : x
  2. Step 2: Convert to fraction form
    1,249,894.72/1,724,846.11 = 676,923.40/x
  3. Step 3: Cross multiply
    1,249,894.72x = 1,724,846.11 × 676,923.40
  4. Step 4: Simplify right side
    1,249,894.72x = 1,167,588,687,827.16
  5. Step 5: Solve for x
    x = 1,167,588,687,827.16/1,249,894.72
  6. Step 6: Final answer
    x = 934,149.63

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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.