Home / 1,678,889.60-2,518,948.80-681,718.40

Finding the Fourth Proportional to 1,678,889.60, 2,518,948.80 and 681,718.40

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Solution

The fourth proportional to 1,678,889.60, 2,518,948.80 and 681,718.40 is: 1,022,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,889.60 : 2,518,948.80 = 681,718.40 : x
  2. Step 2: Convert to fraction form
    1,678,889.60/2,518,948.80 = 681,718.40/x
  3. Step 3: Cross multiply
    1,678,889.60x = 2,518,948.80 × 681,718.40
  4. Step 4: Simplify right side
    1,678,889.60x = 1,717,213,745,617.92
  5. Step 5: Solve for x
    x = 1,717,213,745,617.92/1,678,889.60
  6. Step 6: Final answer
    x = 1,022,827.08

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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.