Home / 1,088,139-1,632,206.40-289,421.40

Finding the Fourth Proportional to 1,088,139, 1,632,206.40 and 289,421.40

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Solution

The fourth proportional to 1,088,139, 1,632,206.40 and 289,421.40 is: 434,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088,139 : 1,632,206.40 = 289,421.40 : x
  2. Step 2: Convert to fraction form
    1,088,139/1,632,206.40 = 289,421.40/x
  3. Step 3: Cross multiply
    1,088,139x = 1,632,206.40 × 289,421.40
  4. Step 4: Simplify right side
    1,088,139x = 472,395,461,376.96
  5. Step 5: Solve for x
    x = 472,395,461,376.96/1,088,139
  6. Step 6: Final answer
    x = 434,131.54

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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.