Home / 759,957.78-1,048,772.61-420,420.18

Finding the Fourth Proportional to 759,957.78, 1,048,772.61 and 420,420.18

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Solution

The fourth proportional to 759,957.78, 1,048,772.61 and 420,420.18 is: 580,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,957.78 : 1,048,772.61 = 420,420.18 : x
  2. Step 2: Convert to fraction form
    759,957.78/1,048,772.61 = 420,420.18/x
  3. Step 3: Cross multiply
    759,957.78x = 1,048,772.61 × 420,420.18
  4. Step 4: Simplify right side
    759,957.78x = 440,925,169,475.27
  5. Step 5: Solve for x
    x = 440,925,169,475.27/759,957.78
  6. Step 6: Final answer
    x = 580,196.93

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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.