Home / 759,780.54-1,139,672.70-310,501.32

Finding the Fourth Proportional to 759,780.54, 1,139,672.70 and 310,501.32

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Solution

The fourth proportional to 759,780.54, 1,139,672.70 and 310,501.32 is: 465,752.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,780.54 : 1,139,672.70 = 310,501.32 : x
  2. Step 2: Convert to fraction form
    759,780.54/1,139,672.70 = 310,501.32/x
  3. Step 3: Cross multiply
    759,780.54x = 1,139,672.70 × 310,501.32
  4. Step 4: Simplify right side
    759,780.54x = 353,869,877,717.96
  5. Step 5: Solve for x
    x = 353,869,877,717.96/759,780.54
  6. Step 6: Final answer
    x = 465,752.75

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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.