Home / 1,289,066.40-1,778,873.04-708,288.48

Finding the Fourth Proportional to 1,289,066.40, 1,778,873.04 and 708,288.48

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Solution

The fourth proportional to 1,289,066.40, 1,778,873.04 and 708,288.48 is: 977,416.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,066.40 : 1,778,873.04 = 708,288.48 : x
  2. Step 2: Convert to fraction form
    1,289,066.40/1,778,873.04 = 708,288.48/x
  3. Step 3: Cross multiply
    1,289,066.40x = 1,778,873.04 × 708,288.48
  4. Step 4: Simplify right side
    1,289,066.40x = 1,259,955,281,614.58
  5. Step 5: Solve for x
    x = 1,259,955,281,614.58/1,289,066.40
  6. Step 6: Final answer
    x = 977,416.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.