Home / 1,413,212.80-2,119,089.60-415,811.20

Finding the Fourth Proportional to 1,413,212.80, 2,119,089.60 and 415,811.20

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Solution

The fourth proportional to 1,413,212.80, 2,119,089.60 and 415,811.20 is: 623,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,212.80 : 2,119,089.60 = 415,811.20 : x
  2. Step 2: Convert to fraction form
    1,413,212.80/2,119,089.60 = 415,811.20/x
  3. Step 3: Cross multiply
    1,413,212.80x = 2,119,089.60 × 415,811.20
  4. Step 4: Simplify right side
    1,413,212.80x = 881,141,189,483.52
  5. Step 5: Solve for x
    x = 881,141,189,483.52/1,413,212.80
  6. Step 6: Final answer
    x = 623,502.13

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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.