Home / 1,272,657.64-1,756,833.71-756,578.64

Finding the Fourth Proportional to 1,272,657.64, 1,756,833.71 and 756,578.64

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Solution

The fourth proportional to 1,272,657.64, 1,756,833.71 and 756,578.64 is: 1,044,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,657.64 : 1,756,833.71 = 756,578.64 : x
  2. Step 2: Convert to fraction form
    1,272,657.64/1,756,833.71 = 756,578.64/x
  3. Step 3: Cross multiply
    1,272,657.64x = 1,756,833.71 × 756,578.64
  4. Step 4: Simplify right side
    1,272,657.64x = 1,329,182,861,823.19
  5. Step 5: Solve for x
    x = 1,329,182,861,823.19/1,272,657.64
  6. Step 6: Final answer
    x = 1,044,415.10

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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.