Home / 1,148,859.20-1,723,365.60-390,689.60

Finding the Fourth Proportional to 1,148,859.20, 1,723,365.60 and 390,689.60

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Solution

The fourth proportional to 1,148,859.20, 1,723,365.60 and 390,689.60 is: 586,060.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148,859.20 : 1,723,365.60 = 390,689.60 : x
  2. Step 2: Convert to fraction form
    1,148,859.20/1,723,365.60 = 390,689.60/x
  3. Step 3: Cross multiply
    1,148,859.20x = 1,723,365.60 × 390,689.60
  4. Step 4: Simplify right side
    1,148,859.20x = 673,301,016,917.76
  5. Step 5: Solve for x
    x = 673,301,016,917.76/1,148,859.20
  6. Step 6: Final answer
    x = 586,060.52

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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.