Home / 1,161,981.59-1,603,543.47-645,783.91

Finding the Fourth Proportional to 1,161,981.59, 1,603,543.47 and 645,783.91

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Solution

The fourth proportional to 1,161,981.59, 1,603,543.47 and 645,783.91 is: 891,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,981.59 : 1,603,543.47 = 645,783.91 : x
  2. Step 2: Convert to fraction form
    1,161,981.59/1,603,543.47 = 645,783.91/x
  3. Step 3: Cross multiply
    1,161,981.59x = 1,603,543.47 × 645,783.91
  4. Step 4: Simplify right side
    1,161,981.59x = 1,035,542,571,911.57
  5. Step 5: Solve for x
    x = 1,035,542,571,911.57/1,161,981.59
  6. Step 6: Final answer
    x = 891,186.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.