Home / 1,128,754.83-1,555,125.08-1,074,946.42

Finding the Fourth Proportional to 1,128,754.83, 1,555,125.08 and 1,074,946.42

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Solution

The fourth proportional to 1,128,754.83, 1,555,125.08 and 1,074,946.42 is: 1,480,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,754.83 : 1,555,125.08 = 1,074,946.42 : x
  2. Step 2: Convert to fraction form
    1,128,754.83/1,555,125.08 = 1,074,946.42/x
  3. Step 3: Cross multiply
    1,128,754.83x = 1,555,125.08 × 1,074,946.42
  4. Step 4: Simplify right side
    1,128,754.83x = 1,671,676,137,398.21
  5. Step 5: Solve for x
    x = 1,671,676,137,398.21/1,128,754.83
  6. Step 6: Final answer
    x = 1,480,991.35

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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.