Home / 672,271.60-1,008,407.40-520,056.40

Finding the Fourth Proportional to 672,271.60, 1,008,407.40 and 520,056.40

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Solution

The fourth proportional to 672,271.60, 1,008,407.40 and 520,056.40 is: 780,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,271.60 : 1,008,407.40 = 520,056.40 : x
  2. Step 2: Convert to fraction form
    672,271.60/1,008,407.40 = 520,056.40/x
  3. Step 3: Cross multiply
    672,271.60x = 1,008,407.40 × 520,056.40
  4. Step 4: Simplify right side
    672,271.60x = 524,428,722,177.36
  5. Step 5: Solve for x
    x = 524,428,722,177.36/672,271.60
  6. Step 6: Final answer
    x = 780,084.60

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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.