Home / 1,220,501.05-1,830,747.92-309,681.76

Finding the Fourth Proportional to 1,220,501.05, 1,830,747.92 and 309,681.76

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Solution

The fourth proportional to 1,220,501.05, 1,830,747.92 and 309,681.76 is: 464,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,501.05 : 1,830,747.92 = 309,681.76 : x
  2. Step 2: Convert to fraction form
    1,220,501.05/1,830,747.92 = 309,681.76/x
  3. Step 3: Cross multiply
    1,220,501.05x = 1,830,747.92 × 309,681.76
  4. Step 4: Simplify right side
    1,220,501.05x = 566,949,228,828.20
  5. Step 5: Solve for x
    x = 566,949,228,828.20/1,220,501.05
  6. Step 6: Final answer
    x = 464,521.71

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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.