Home / 678,520.40-1,016,225.40-662,968.40

Finding the Fourth Proportional to 678,520.40, 1,016,225.40 and 662,968.40

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Solution

The fourth proportional to 678,520.40, 1,016,225.40 and 662,968.40 is: 992,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,520.40 : 1,016,225.40 = 662,968.40 : x
  2. Step 2: Convert to fraction form
    678,520.40/1,016,225.40 = 662,968.40/x
  3. Step 3: Cross multiply
    678,520.40x = 1,016,225.40 × 662,968.40
  4. Step 4: Simplify right side
    678,520.40x = 673,725,327,477.36
  5. Step 5: Solve for x
    x = 673,725,327,477.36/678,520.40
  6. Step 6: Final answer
    x = 992,933.05

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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.