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Finding the Fourth Proportional to 680,948.80, 1,018,798.80 and 444,752.80

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Solution

The fourth proportional to 680,948.80, 1,018,798.80 and 444,752.80 is: 665,415.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,948.80 : 1,018,798.80 = 444,752.80 : x
  2. Step 2: Convert to fraction form
    680,948.80/1,018,798.80 = 444,752.80/x
  3. Step 3: Cross multiply
    680,948.80x = 1,018,798.80 × 444,752.80
  4. Step 4: Simplify right side
    680,948.80x = 453,113,618,936.64
  5. Step 5: Solve for x
    x = 453,113,618,936.64/680,948.80
  6. Step 6: Final answer
    x = 665,415.11

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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.