Home / 1,272,744.42-1,756,423.86-776,057.45

Finding the Fourth Proportional to 1,272,744.42, 1,756,423.86 and 776,057.45

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Solution

The fourth proportional to 1,272,744.42, 1,756,423.86 and 776,057.45 is: 1,070,981.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,744.42 : 1,756,423.86 = 776,057.45 : x
  2. Step 2: Convert to fraction form
    1,272,744.42/1,756,423.86 = 776,057.45/x
  3. Step 3: Cross multiply
    1,272,744.42x = 1,756,423.86 × 776,057.45
  4. Step 4: Simplify right side
    1,272,744.42x = 1,363,085,810,218.42
  5. Step 5: Solve for x
    x = 1,363,085,810,218.42/1,272,744.42
  6. Step 6: Final answer
    x = 1,070,981.57

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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.