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Finding the Fourth Proportional to 891,157.98, 1,229,798.34 and 483,259.71

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Solution

The fourth proportional to 891,157.98, 1,229,798.34 and 483,259.71 is: 666,898.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,157.98 : 1,229,798.34 = 483,259.71 : x
  2. Step 2: Convert to fraction form
    891,157.98/1,229,798.34 = 483,259.71/x
  3. Step 3: Cross multiply
    891,157.98x = 1,229,798.34 × 483,259.71
  4. Step 4: Simplify right side
    891,157.98x = 594,311,988,662.99
  5. Step 5: Solve for x
    x = 594,311,988,662.99/891,157.98
  6. Step 6: Final answer
    x = 666,898.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.