Home / 859,095.40-1,288,643.10-819,729.40

Finding the Fourth Proportional to 859,095.40, 1,288,643.10 and 819,729.40

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Solution

The fourth proportional to 859,095.40, 1,288,643.10 and 819,729.40 is: 1,229,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,095.40 : 1,288,643.10 = 819,729.40 : x
  2. Step 2: Convert to fraction form
    859,095.40/1,288,643.10 = 819,729.40/x
  3. Step 3: Cross multiply
    859,095.40x = 1,288,643.10 × 819,729.40
  4. Step 4: Simplify right side
    859,095.40x = 1,056,338,635,177.14
  5. Step 5: Solve for x
    x = 1,056,338,635,177.14/859,095.40
  6. Step 6: Final answer
    x = 1,229,594.10

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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.