Home / 879,819.40-1,319,729.10-655,870.60

Finding the Fourth Proportional to 879,819.40, 1,319,729.10 and 655,870.60

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Solution

The fourth proportional to 879,819.40, 1,319,729.10 and 655,870.60 is: 983,805.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,819.40 : 1,319,729.10 = 655,870.60 : x
  2. Step 2: Convert to fraction form
    879,819.40/1,319,729.10 = 655,870.60/x
  3. Step 3: Cross multiply
    879,819.40x = 1,319,729.10 × 655,870.60
  4. Step 4: Simplify right side
    879,819.40x = 865,571,516,654.46
  5. Step 5: Solve for x
    x = 865,571,516,654.46/879,819.40
  6. Step 6: Final answer
    x = 983,805.90

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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.