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Finding the Fourth Proportional to 636,847.40, 955,271.10 and 450,223.40

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Solution

The fourth proportional to 636,847.40, 955,271.10 and 450,223.40 is: 675,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,847.40 : 955,271.10 = 450,223.40 : x
  2. Step 2: Convert to fraction form
    636,847.40/955,271.10 = 450,223.40/x
  3. Step 3: Cross multiply
    636,847.40x = 955,271.10 × 450,223.40
  4. Step 4: Simplify right side
    636,847.40x = 430,085,402,563.74
  5. Step 5: Solve for x
    x = 430,085,402,563.74/636,847.40
  6. Step 6: Final answer
    x = 675,335.10

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Similar ratio
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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.