Home / 1,191,430.40-1,786,972.80-349,894.40

Finding the Fourth Proportional to 1,191,430.40, 1,786,972.80 and 349,894.40

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Solution

The fourth proportional to 1,191,430.40, 1,786,972.80 and 349,894.40 is: 524,790.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,430.40 : 1,786,972.80 = 349,894.40 : x
  2. Step 2: Convert to fraction form
    1,191,430.40/1,786,972.80 = 349,894.40/x
  3. Step 3: Cross multiply
    1,191,430.40x = 1,786,972.80 × 349,894.40
  4. Step 4: Simplify right side
    1,191,430.40x = 625,251,775,672.32
  5. Step 5: Solve for x
    x = 625,251,775,672.32/1,191,430.40
  6. Step 6: Final answer
    x = 524,790.85

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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.