Home / 1,856,690.48-2,780,309.10-1,223,685.20

Finding the Fourth Proportional to 1,856,690.48, 2,780,309.10 and 1,223,685.20

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Solution

The fourth proportional to 1,856,690.48, 2,780,309.10 and 1,223,685.20 is: 1,832,412.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856,690.48 : 2,780,309.10 = 1,223,685.20 : x
  2. Step 2: Convert to fraction form
    1,856,690.48/2,780,309.10 = 1,223,685.20/x
  3. Step 3: Cross multiply
    1,856,690.48x = 2,780,309.10 × 1,223,685.20
  4. Step 4: Simplify right side
    1,856,690.48x = 3,402,223,097,095.32
  5. Step 5: Solve for x
    x = 3,402,223,097,095.32/1,856,690.48
  6. Step 6: Final answer
    x = 1,832,412.64

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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.