Home / 759,627.28-1,139,020.56-310,663.45

Finding the Fourth Proportional to 759,627.28, 1,139,020.56 and 310,663.45

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Solution

The fourth proportional to 759,627.28, 1,139,020.56 and 310,663.45 is: 465,823.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,627.28 : 1,139,020.56 = 310,663.45 : x
  2. Step 2: Convert to fraction form
    759,627.28/1,139,020.56 = 310,663.45/x
  3. Step 3: Cross multiply
    759,627.28x = 1,139,020.56 × 310,663.45
  4. Step 4: Simplify right side
    759,627.28x = 353,852,056,790.53
  5. Step 5: Solve for x
    x = 353,852,056,790.53/759,627.28
  6. Step 6: Final answer
    x = 465,823.26

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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.