Home / 698,521.80-1,047,782.70-457,984.20

Finding the Fourth Proportional to 698,521.80, 1,047,782.70 and 457,984.20

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Solution

The fourth proportional to 698,521.80, 1,047,782.70 and 457,984.20 is: 686,976.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,521.80 : 1,047,782.70 = 457,984.20 : x
  2. Step 2: Convert to fraction form
    698,521.80/1,047,782.70 = 457,984.20/x
  3. Step 3: Cross multiply
    698,521.80x = 1,047,782.70 × 457,984.20
  4. Step 4: Simplify right side
    698,521.80x = 479,867,921,633.34
  5. Step 5: Solve for x
    x = 479,867,921,633.34/698,521.80
  6. Step 6: Final answer
    x = 686,976.30

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Similar ratio
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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.