Home / 1,210,365.40-1,817,297.70-912,933.40

Finding the Fourth Proportional to 1,210,365.40, 1,817,297.70 and 912,933.40

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Solution

The fourth proportional to 1,210,365.40, 1,817,297.70 and 912,933.40 is: 1,370,719.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,365.40 : 1,817,297.70 = 912,933.40 : x
  2. Step 2: Convert to fraction form
    1,210,365.40/1,817,297.70 = 912,933.40/x
  3. Step 3: Cross multiply
    1,210,365.40x = 1,817,297.70 × 912,933.40
  4. Step 4: Simplify right side
    1,210,365.40x = 1,659,071,768,073.18
  5. Step 5: Solve for x
    x = 1,659,071,768,073.18/1,210,365.40
  6. Step 6: Final answer
    x = 1,370,719.76

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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.