Home / 1,143,738.08-1,578,191.28-660,226.40

Finding the Fourth Proportional to 1,143,738.08, 1,578,191.28 and 660,226.40

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Solution

The fourth proportional to 1,143,738.08, 1,578,191.28 and 660,226.40 is: 911,015.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,738.08 : 1,578,191.28 = 660,226.40 : x
  2. Step 2: Convert to fraction form
    1,143,738.08/1,578,191.28 = 660,226.40/x
  3. Step 3: Cross multiply
    1,143,738.08x = 1,578,191.28 × 660,226.40
  4. Step 4: Simplify right side
    1,143,738.08x = 1,041,963,547,305.79
  5. Step 5: Solve for x
    x = 1,041,963,547,305.79/1,143,738.08
  6. Step 6: Final answer
    x = 911,015.87

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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.