Home / 1,219,720.64-1,829,758.08-378,340.16

Finding the Fourth Proportional to 1,219,720.64, 1,829,758.08 and 378,340.16

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Solution

The fourth proportional to 1,219,720.64, 1,829,758.08 and 378,340.16 is: 567,565.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,720.64 : 1,829,758.08 = 378,340.16 : x
  2. Step 2: Convert to fraction form
    1,219,720.64/1,829,758.08 = 378,340.16/x
  3. Step 3: Cross multiply
    1,219,720.64x = 1,829,758.08 × 378,340.16
  4. Step 4: Simplify right side
    1,219,720.64x = 692,270,964,748.49
  5. Step 5: Solve for x
    x = 692,270,964,748.49/1,219,720.64
  6. Step 6: Final answer
    x = 567,565.18

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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.