Home / 1,585,904.40-2,379,115.80-520,657.20

Finding the Fourth Proportional to 1,585,904.40, 2,379,115.80 and 520,657.20

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Solution

The fourth proportional to 1,585,904.40, 2,379,115.80 and 520,657.20 is: 781,070.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,904.40 : 2,379,115.80 = 520,657.20 : x
  2. Step 2: Convert to fraction form
    1,585,904.40/2,379,115.80 = 520,657.20/x
  3. Step 3: Cross multiply
    1,585,904.40x = 2,379,115.80 × 520,657.20
  4. Step 4: Simplify right side
    1,585,904.40x = 1,238,703,770,903.76
  5. Step 5: Solve for x
    x = 1,238,703,770,903.76/1,585,904.40
  6. Step 6: Final answer
    x = 781,070.90

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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.