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Finding the Fourth Proportional to 442,798.16, 611,259.36 and 299,991.92

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Solution

The fourth proportional to 442,798.16, 611,259.36 and 299,991.92 is: 414,122.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,798.16 : 611,259.36 = 299,991.92 : x
  2. Step 2: Convert to fraction form
    442,798.16/611,259.36 = 299,991.92/x
  3. Step 3: Cross multiply
    442,798.16x = 611,259.36 × 299,991.92
  4. Step 4: Simplify right side
    442,798.16x = 183,372,869,024.37
  5. Step 5: Solve for x
    x = 183,372,869,024.37/442,798.16
  6. Step 6: Final answer
    x = 414,122.92

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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.