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Finding the Fourth Proportional to 478,939.94, 660,967.08 and 264,079.70

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Solution

The fourth proportional to 478,939.94, 660,967.08 and 264,079.70 is: 364,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,939.94 : 660,967.08 = 264,079.70 : x
  2. Step 2: Convert to fraction form
    478,939.94/660,967.08 = 264,079.70/x
  3. Step 3: Cross multiply
    478,939.94x = 660,967.08 × 264,079.70
  4. Step 4: Simplify right side
    478,939.94x = 174,547,988,196.28
  5. Step 5: Solve for x
    x = 174,547,988,196.28/478,939.94
  6. Step 6: Final answer
    x = 364,446.51

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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.