Home / 1,421,780.49-2,132,670.74-475,151.21

Finding the Fourth Proportional to 1,421,780.49, 2,132,670.74 and 475,151.21

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Solution

The fourth proportional to 1,421,780.49, 2,132,670.74 and 475,151.21 is: 712,726.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,780.49 : 2,132,670.74 = 475,151.21 : x
  2. Step 2: Convert to fraction form
    1,421,780.49/2,132,670.74 = 475,151.21/x
  3. Step 3: Cross multiply
    1,421,780.49x = 2,132,670.74 × 475,151.21
  4. Step 4: Simplify right side
    1,421,780.49x = 1,013,341,069,603.49
  5. Step 5: Solve for x
    x = 1,013,341,069,603.49/1,421,780.49
  6. Step 6: Final answer
    x = 712,726.81

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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.