Home / 1,211,176.40-1,816,327.20-611,938.40

Finding the Fourth Proportional to 1,211,176.40, 1,816,327.20 and 611,938.40

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Solution

The fourth proportional to 1,211,176.40, 1,816,327.20 and 611,938.40 is: 917,686.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,176.40 : 1,816,327.20 = 611,938.40 : x
  2. Step 2: Convert to fraction form
    1,211,176.40/1,816,327.20 = 611,938.40/x
  3. Step 3: Cross multiply
    1,211,176.40x = 1,816,327.20 × 611,938.40
  4. Step 4: Simplify right side
    1,211,176.40x = 1,111,480,360,644.48
  5. Step 5: Solve for x
    x = 1,111,480,360,644.48/1,211,176.40
  6. Step 6: Final answer
    x = 917,686.61

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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.