Home / 1,219,752.40-1,829,455.80-378,389.20

Finding the Fourth Proportional to 1,219,752.40, 1,829,455.80 and 378,389.20

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Solution

The fourth proportional to 1,219,752.40, 1,829,455.80 and 378,389.20 is: 567,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,752.40 : 1,829,455.80 = 378,389.20 : x
  2. Step 2: Convert to fraction form
    1,219,752.40/1,829,455.80 = 378,389.20/x
  3. Step 3: Cross multiply
    1,219,752.40x = 1,829,455.80 × 378,389.20
  4. Step 4: Simplify right side
    1,219,752.40x = 692,246,316,597.36
  5. Step 5: Solve for x
    x = 692,246,316,597.36/1,219,752.40
  6. Step 6: Final answer
    x = 567,530.19

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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.