Home / 763,620.77-1,052,933.10-487,615.71

Finding the Fourth Proportional to 763,620.77, 1,052,933.10 and 487,615.71

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Solution

The fourth proportional to 763,620.77, 1,052,933.10 and 487,615.71 is: 672,358.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,620.77 : 1,052,933.10 = 487,615.71 : x
  2. Step 2: Convert to fraction form
    763,620.77/1,052,933.10 = 487,615.71/x
  3. Step 3: Cross multiply
    763,620.77x = 1,052,933.10 × 487,615.71
  4. Step 4: Simplify right side
    763,620.77x = 513,426,721,139.00
  5. Step 5: Solve for x
    x = 513,426,721,139.00/763,620.77
  6. Step 6: Final answer
    x = 672,358.25

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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.