Home / 859,534.32-1,288,858.50-385,813.62

Finding the Fourth Proportional to 859,534.32, 1,288,858.50 and 385,813.62

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Solution

The fourth proportional to 859,534.32, 1,288,858.50 and 385,813.62 is: 578,521.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,534.32 : 1,288,858.50 = 385,813.62 : x
  2. Step 2: Convert to fraction form
    859,534.32/1,288,858.50 = 385,813.62/x
  3. Step 3: Cross multiply
    859,534.32x = 1,288,858.50 × 385,813.62
  4. Step 4: Simplify right side
    859,534.32x = 497,259,163,552.77
  5. Step 5: Solve for x
    x = 497,259,163,552.77/859,534.32
  6. Step 6: Final answer
    x = 578,521.59

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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.