Home / 1,315,178.52-1,816,200.12-1,243,531.56

Finding the Fourth Proportional to 1,315,178.52, 1,816,200.12 and 1,243,531.56

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Solution

The fourth proportional to 1,315,178.52, 1,816,200.12 and 1,243,531.56 is: 1,717,259.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,178.52 : 1,816,200.12 = 1,243,531.56 : x
  2. Step 2: Convert to fraction form
    1,315,178.52/1,816,200.12 = 1,243,531.56/x
  3. Step 3: Cross multiply
    1,315,178.52x = 1,816,200.12 × 1,243,531.56
  4. Step 4: Simplify right side
    1,315,178.52x = 2,258,502,168,495.79
  5. Step 5: Solve for x
    x = 2,258,502,168,495.79/1,315,178.52
  6. Step 6: Final answer
    x = 1,717,259.01

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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.