Home / 612,788.40-918,145.80-296,564.40

Finding the Fourth Proportional to 612,788.40, 918,145.80 and 296,564.40

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Solution

The fourth proportional to 612,788.40, 918,145.80 and 296,564.40 is: 444,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,788.40 : 918,145.80 = 296,564.40 : x
  2. Step 2: Convert to fraction form
    612,788.40/918,145.80 = 296,564.40/x
  3. Step 3: Cross multiply
    612,788.40x = 918,145.80 × 296,564.40
  4. Step 4: Simplify right side
    612,788.40x = 272,289,358,289.52
  5. Step 5: Solve for x
    x = 272,289,358,289.52/612,788.40
  6. Step 6: Final answer
    x = 444,344.83

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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.