Home / 1,239,314.76-1,859,060.53-518,931.54

Finding the Fourth Proportional to 1,239,314.76, 1,859,060.53 and 518,931.54

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Solution

The fourth proportional to 1,239,314.76, 1,859,060.53 and 518,931.54 is: 778,434.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,314.76 : 1,859,060.53 = 518,931.54 : x
  2. Step 2: Convert to fraction form
    1,239,314.76/1,859,060.53 = 518,931.54/x
  3. Step 3: Cross multiply
    1,239,314.76x = 1,859,060.53 × 518,931.54
  4. Step 4: Simplify right side
    1,239,314.76x = 964,725,143,786.12
  5. Step 5: Solve for x
    x = 964,725,143,786.12/1,239,314.76
  6. Step 6: Final answer
    x = 778,434.32

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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.