Home / 758,969.43-1,139,503.91-385,254.87

Finding the Fourth Proportional to 758,969.43, 1,139,503.91 and 385,254.87

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Solution

The fourth proportional to 758,969.43, 1,139,503.91 and 385,254.87 is: 578,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,969.43 : 1,139,503.91 = 385,254.87 : x
  2. Step 2: Convert to fraction form
    758,969.43/1,139,503.91 = 385,254.87/x
  3. Step 3: Cross multiply
    758,969.43x = 1,139,503.91 × 385,254.87
  4. Step 4: Simplify right side
    758,969.43x = 438,999,428,785.27
  5. Step 5: Solve for x
    x = 438,999,428,785.27/758,969.43
  6. Step 6: Final answer
    x = 578,415.17

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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.