Home / 1,429,575.80-1,972,805.69-817,738.76

Finding the Fourth Proportional to 1,429,575.80, 1,972,805.69 and 817,738.76

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Solution

The fourth proportional to 1,429,575.80, 1,972,805.69 and 817,738.76 is: 1,128,474.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,575.80 : 1,972,805.69 = 817,738.76 : x
  2. Step 2: Convert to fraction form
    1,429,575.80/1,972,805.69 = 817,738.76/x
  3. Step 3: Cross multiply
    1,429,575.80x = 1,972,805.69 × 817,738.76
  4. Step 4: Simplify right side
    1,429,575.80x = 1,613,239,680,427.11
  5. Step 5: Solve for x
    x = 1,613,239,680,427.11/1,429,575.80
  6. Step 6: Final answer
    x = 1,128,474.39

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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.