Home / 679,195.40-1,017,626.70-442,416.20

Finding the Fourth Proportional to 679,195.40, 1,017,626.70 and 442,416.20

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Solution

The fourth proportional to 679,195.40, 1,017,626.70 and 442,416.20 is: 662,864.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,195.40 : 1,017,626.70 = 442,416.20 : x
  2. Step 2: Convert to fraction form
    679,195.40/1,017,626.70 = 442,416.20/x
  3. Step 3: Cross multiply
    679,195.40x = 1,017,626.70 × 442,416.20
  4. Step 4: Simplify right side
    679,195.40x = 450,214,537,632.54
  5. Step 5: Solve for x
    x = 450,214,537,632.54/679,195.40
  6. Step 6: Final answer
    x = 662,864.53

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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.