Home / 725,081.40-1,087,622.10-538,457.40

Finding the Fourth Proportional to 725,081.40, 1,087,622.10 and 538,457.40

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Solution

The fourth proportional to 725,081.40, 1,087,622.10 and 538,457.40 is: 807,686.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,081.40 : 1,087,622.10 = 538,457.40 : x
  2. Step 2: Convert to fraction form
    725,081.40/1,087,622.10 = 538,457.40/x
  3. Step 3: Cross multiply
    725,081.40x = 1,087,622.10 × 538,457.40
  4. Step 4: Simplify right side
    725,081.40x = 585,638,168,148.54
  5. Step 5: Solve for x
    x = 585,638,168,148.54/725,081.40
  6. Step 6: Final answer
    x = 807,686.10

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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.