Home / 1,378,407.40-2,066,764.38-535,977.16

Finding the Fourth Proportional to 1,378,407.40, 2,066,764.38 and 535,977.16

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Solution

The fourth proportional to 1,378,407.40, 2,066,764.38 and 535,977.16 is: 803,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,407.40 : 2,066,764.38 = 535,977.16 : x
  2. Step 2: Convert to fraction form
    1,378,407.40/2,066,764.38 = 535,977.16/x
  3. Step 3: Cross multiply
    1,378,407.40x = 2,066,764.38 × 535,977.16
  4. Step 4: Simplify right side
    1,378,407.40x = 1,107,738,502,781.56
  5. Step 5: Solve for x
    x = 1,107,738,502,781.56/1,378,407.40
  6. Step 6: Final answer
    x = 803,636.50

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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.