Home / 776,851.91-1,072,039.14-432,686.78

Finding the Fourth Proportional to 776,851.91, 1,072,039.14 and 432,686.78

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Solution

The fourth proportional to 776,851.91, 1,072,039.14 and 432,686.78 is: 597,098.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,851.91 : 1,072,039.14 = 432,686.78 : x
  2. Step 2: Convert to fraction form
    776,851.91/1,072,039.14 = 432,686.78/x
  3. Step 3: Cross multiply
    776,851.91x = 1,072,039.14 × 432,686.78
  4. Step 4: Simplify right side
    776,851.91x = 463,857,163,520.57
  5. Step 5: Solve for x
    x = 463,857,163,520.57/776,851.91
  6. Step 6: Final answer
    x = 597,098.57

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1.5x scale

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.