Home / 1,121,065.50-1,681,582.44-521,691.42

Finding the Fourth Proportional to 1,121,065.50, 1,681,582.44 and 521,691.42

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Solution

The fourth proportional to 1,121,065.50, 1,681,582.44 and 521,691.42 is: 782,529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,065.50 : 1,681,582.44 = 521,691.42 : x
  2. Step 2: Convert to fraction form
    1,121,065.50/1,681,582.44 = 521,691.42/x
  3. Step 3: Cross multiply
    1,121,065.50x = 1,681,582.44 × 521,691.42
  4. Step 4: Simplify right side
    1,121,065.50x = 877,267,130,970.67
  5. Step 5: Solve for x
    x = 877,267,130,970.67/1,121,065.50
  6. Step 6: Final answer
    x = 782,529.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.