Home / 2,911,381.20-4,367,727.90-889,718.40

Finding the Fourth Proportional to 2,911,381.20, 4,367,727.90 and 889,718.40

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Solution

The fourth proportional to 2,911,381.20, 4,367,727.90 and 889,718.40 is: 1,334,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911,381.20 : 4,367,727.90 = 889,718.40 : x
  2. Step 2: Convert to fraction form
    2,911,381.20/4,367,727.90 = 889,718.40/x
  3. Step 3: Cross multiply
    2,911,381.20x = 4,367,727.90 × 889,718.40
  4. Step 4: Simplify right side
    2,911,381.20x = 3,886,047,878,823.36
  5. Step 5: Solve for x
    x = 3,886,047,878,823.36/2,911,381.20
  6. Step 6: Final answer
    x = 1,334,778.10

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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.