Home / 1,355,058.05-2,032,585.45-408,428.66

Finding the Fourth Proportional to 1,355,058.05, 2,032,585.45 and 408,428.66

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Solution

The fourth proportional to 1,355,058.05, 2,032,585.45 and 408,428.66 is: 612,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,058.05 : 2,032,585.45 = 408,428.66 : x
  2. Step 2: Convert to fraction form
    1,355,058.05/2,032,585.45 = 408,428.66/x
  3. Step 3: Cross multiply
    1,355,058.05x = 2,032,585.45 × 408,428.66
  4. Step 4: Simplify right side
    1,355,058.05x = 830,166,155,739.39
  5. Step 5: Solve for x
    x = 830,166,155,739.39/1,355,058.05
  6. Step 6: Final answer
    x = 612,642.51

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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.