Home / 762,870.17-1,052,762.15-418,708.36

Finding the Fourth Proportional to 762,870.17, 1,052,762.15 and 418,708.36

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Solution

The fourth proportional to 762,870.17, 1,052,762.15 and 418,708.36 is: 577,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,870.17 : 1,052,762.15 = 418,708.36 : x
  2. Step 2: Convert to fraction form
    762,870.17/1,052,762.15 = 418,708.36/x
  3. Step 3: Cross multiply
    762,870.17x = 1,052,762.15 × 418,708.36
  4. Step 4: Simplify right side
    762,870.17x = 440,800,313,296.57
  5. Step 5: Solve for x
    x = 440,800,313,296.57/762,870.17
  6. Step 6: Final answer
    x = 577,818.26

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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.