Home / 1,237,128.52-1,855,754.13-384,780.70

Finding the Fourth Proportional to 1,237,128.52, 1,855,754.13 and 384,780.70

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Solution

The fourth proportional to 1,237,128.52, 1,855,754.13 and 384,780.70 is: 577,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,128.52 : 1,855,754.13 = 384,780.70 : x
  2. Step 2: Convert to fraction form
    1,237,128.52/1,855,754.13 = 384,780.70/x
  3. Step 3: Cross multiply
    1,237,128.52x = 1,855,754.13 × 384,780.70
  4. Step 4: Simplify right side
    1,237,128.52x = 714,058,373,169.29
  5. Step 5: Solve for x
    x = 714,058,373,169.29/1,237,128.52
  6. Step 6: Final answer
    x = 577,190.13

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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.