Home / 2,590,742.40-3,886,113.60-817,814.40

Finding the Fourth Proportional to 2,590,742.40, 3,886,113.60 and 817,814.40

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Solution

The fourth proportional to 2,590,742.40, 3,886,113.60 and 817,814.40 is: 1,226,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,742.40 : 3,886,113.60 = 817,814.40 : x
  2. Step 2: Convert to fraction form
    2,590,742.40/3,886,113.60 = 817,814.40/x
  3. Step 3: Cross multiply
    2,590,742.40x = 3,886,113.60 × 817,814.40
  4. Step 4: Simplify right side
    2,590,742.40x = 3,178,119,662,115.84
  5. Step 5: Solve for x
    x = 3,178,119,662,115.84/2,590,742.40
  6. Step 6: Final answer
    x = 1,226,721.60

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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.