Home / 1,721,728.40-2,581,426.20-879,587.60

Finding the Fourth Proportional to 1,721,728.40, 2,581,426.20 and 879,587.60

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Solution

The fourth proportional to 1,721,728.40, 2,581,426.20 and 879,587.60 is: 1,318,785.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,728.40 : 2,581,426.20 = 879,587.60 : x
  2. Step 2: Convert to fraction form
    1,721,728.40/2,581,426.20 = 879,587.60/x
  3. Step 3: Cross multiply
    1,721,728.40x = 2,581,426.20 × 879,587.60
  4. Step 4: Simplify right side
    1,721,728.40x = 2,270,590,475,835.12
  5. Step 5: Solve for x
    x = 2,270,590,475,835.12/1,721,728.40
  6. Step 6: Final answer
    x = 1,318,785.52

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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.