Home / 784,707.13-1,083,221.27-530,402.77

Finding the Fourth Proportional to 784,707.13, 1,083,221.27 and 530,402.77

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Solution

The fourth proportional to 784,707.13, 1,083,221.27 and 530,402.77 is: 732,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,707.13 : 1,083,221.27 = 530,402.77 : x
  2. Step 2: Convert to fraction form
    784,707.13/1,083,221.27 = 530,402.77/x
  3. Step 3: Cross multiply
    784,707.13x = 1,083,221.27 × 530,402.77
  4. Step 4: Simplify right side
    784,707.13x = 574,543,562,130.92
  5. Step 5: Solve for x
    x = 574,543,562,130.92/784,707.13
  6. Step 6: Final answer
    x = 732,175.79

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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.