Home / 460,541.76-690,969.52-280,986.72

Finding the Fourth Proportional to 460,541.76, 690,969.52 and 280,986.72

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Solution

The fourth proportional to 460,541.76, 690,969.52 and 280,986.72 is: 421,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,541.76 : 690,969.52 = 280,986.72 : x
  2. Step 2: Convert to fraction form
    460,541.76/690,969.52 = 280,986.72/x
  3. Step 3: Cross multiply
    460,541.76x = 690,969.52 × 280,986.72
  4. Step 4: Simplify right side
    460,541.76x = 194,153,259,044.77
  5. Step 5: Solve for x
    x = 194,153,259,044.77/460,541.76
  6. Step 6: Final answer
    x = 421,575.80

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1.5x scale

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.