Home / 759,403.56-1,139,106.45-310,124.43

Finding the Fourth Proportional to 759,403.56, 1,139,106.45 and 310,124.43

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Solution

The fourth proportional to 759,403.56, 1,139,106.45 and 310,124.43 is: 465,187.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,403.56 : 1,139,106.45 = 310,124.43 : x
  2. Step 2: Convert to fraction form
    759,403.56/1,139,106.45 = 310,124.43/x
  3. Step 3: Cross multiply
    759,403.56x = 1,139,106.45 × 310,124.43
  4. Step 4: Simplify right side
    759,403.56x = 353,264,736,964.95
  5. Step 5: Solve for x
    x = 353,264,736,964.95/759,403.56
  6. Step 6: Final answer
    x = 465,187.10

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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.