Home / 2,878,812.90-4,315,266.90-1,680,118.20

Finding the Fourth Proportional to 2,878,812.90, 4,315,266.90 and 1,680,118.20

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Solution

The fourth proportional to 2,878,812.90, 4,315,266.90 and 1,680,118.20 is: 2,518,454.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,812.90 : 4,315,266.90 = 1,680,118.20 : x
  2. Step 2: Convert to fraction form
    2,878,812.90/4,315,266.90 = 1,680,118.20/x
  3. Step 3: Cross multiply
    2,878,812.90x = 4,315,266.90 × 1,680,118.20
  4. Step 4: Simplify right side
    2,878,812.90x = 7,250,158,456,547.58
  5. Step 5: Solve for x
    x = 7,250,158,456,547.58/2,878,812.90
  6. Step 6: Final answer
    x = 2,518,454.21

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1.5x scale

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.